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ICSE Class 8 Maths Selina Solutions for Chapter 17 Special Types of Quadrilaterals A quadrilateral is a four-sided figure in 2-dimensional space made up of four line segments. The most common types of quadrilaterals are Squares and Rectangles. In the primary classes, we have studied the basic quadrilaterals. But in this Chapter, you will learn about special types of quadrilaterals. The solutions of this chapter have been prepared by BYJU’S experts and students should practice these questions so that they can clear all their doubts. In your final exam paper, you’ll definitely find some of the questions asked from this chapter. Students can download the pdf format of ICSE Download ICSE Class 8 Maths Selina Solutions Chapter 17:- Chapter 17 Special Types of Quadrilaterals consists of a total of 15 questions and the solutions of all these questions are provided below: CHAPTER 17 – SPECIAL TYPES OF QUADRILATERALS Exercise Question 1. In parallelogram ABCD, ∠A = 3 times ∠B. Find all the angles of the parallelogram. In the same parallelogram if AB = 5x – 7 and CD = 3x + 1; find the length of CD. Solution:- Let ∠B=x ∠A=3∠B=3x AD||BC ∠A+∠B=180° 3x+x=180° ⇒4x=180° ⇒x=45° ∠B=45° Opposite angles of parallelogram are equal. ∠A=∠C=135° Opposite sides of parallelogram are equal. AB=CD 5x-7=3x+1 ⇒5x-3x=1+7 ⇒2x=8 ⇒x=4 Question 2. In parallelogram PQRS, ∠Q = (4x – 5)° and ∠S = (3x + 10)° . Calculate: ∠Q and ∠R. Sol...

Science is a fascinating subject. The vast universe we live in is brimming with objects that exemplify innumerable scientific principles. Today's children are growing up in a more technologically and scientifically advanced world than ever before. As a result, people must acquire sophisticated and fundamental scientific procedures in order to live a stress-free existence. Children who are scientifically literate take Science as a subject at school and use it to guide their career choices. Teaching Science to Class 8 pupils can be challenging for teachers since the terminology used in the textbook has a variety of scientific words that are unfamiliar to kids. This has an impact on pupils' preparation for their Class 8 examinations. They grow quite worried about the questions from the Science textbook by the end of each chapter. Students may use NCERT Solutions for Class 8 Science to find all of the solutions to problems from the textbook chapters. The NCERT Solutions for Class 8 provide solutions to questions from the NCERT Science Class 8 textbook's Physics, Chemistry, and Biology sections. The written answers are highly thorough and detailed, removing any concerns about the hard scientific issues posed in the textbook. The NCERT 8 Science Solutions include easy-to-understand pictures and diagrams, so students will have no trouble understanding the answers. NCERT Solutions for Class 8th Science have been provided in a very easy manner by the creators. Complex scientific te...

We have compiled the NCERT MCQ Questions for Class 8 Science Chapter 11 Force and Pressure with Answers Pdf free download covering the entire syllabus. Practice Force and Pressure Class 8 MCQs Questions with Answers Choose the correct option. Question 1. The pressure which is exerted by air around us is known as (a) force (b) atmospheric pressure (c) muscular force (d) friction Answer Answer: (b) atmospheric pressure Question 2. Force acting on per unit area is called (a) non-contact forces (b) contact forces (c) force (d) pressure Answer Answer: (d) pressure Question 3. A exerted by an object on another is a force. (a) Push or pull (b) Contact or non-contact force (c) Pressure (d) Magnitude Answer Answer: (a) Push or pull Question 4. The force exerted by the earth to pull the object towards itself is called (a) electrostatic force (b) gravitational force (c) muscular force (d) contact force Answer Answer: (b) gravitational force Question 5. Muscular force is also called __________ force. (a) non-contact (b) contact (c) gravitational (d) magnetic Answer Answer: (b) contact Question 6. The force exerted by a charged body on another charged or uncharged body is called (a) gravitational force (b) electrostatic force (c) non-contact force (d) contact force Answer Answer: (b) electrostatic force Question 7. Force changes the (a) motion of body (b) speed of body (c) shape of body (d) all of these Answer Answer: (d) all of these Question 8. The force exerted by our muscle is call...

Contents • 1 Selina Concise Mathematics Class 8 ICSE Solutions Chapter 16 Understanding Shapes (Including Polygons) • 1.1 Understanding Shapes Exercise 16A – Selina Concise Mathematics Class 8 ICSE Solutions • 1.2 Understanding Shapes Exercise 16B – Selina Concise Mathematics Class 8 ICSE Solutions • 1.3 Understanding Shapes Exercise 16C – Selina Concise Mathematics Class 8 ICSE Solutions • 1.3.1 Selina Concise Mathematics Class 8 ICSE Solutions Selina Concise Mathematics Class 8 ICSE Solutions Chapter 16 Understanding Shapes (Including Polygons) Selina Publishers Concise Mathematics Class 8 ICSE Solutions Chapter 16 Understanding Shapes (Including Polygons) Understanding Shapes Exercise 16A – Selina Concise Mathematics Class 8 ICSE Solutions Question 1. State which of the following are polygons : If the given figure is a polygon, name it as convex or concave. Solution: Question 2. Calculate the sum of angles of a polygon with : (i) 10 sides (ii) 12 sides (iii) 20 sides (iv) 25 sides Solution: Question 3. Find the number of sides in a polygon if the sum of its interior angles is : (i) 900° (ii) 1620° (iii) 16 right-angles (iv) 32 right-angles. Solution: Question 4. Is it possible to have a polygon ; whose sum of interior angles is : (i) 870° (ii) 2340° (iii) 7 right-angles (iv) 4500° Solution: Question 5. (i) If all the angles of a hexagon are equal ; find the measure of each angle. (ii) If all the angles of a 14-sided figure are equal ; find the measure of each angle. Sol...

Updated ICSE Class 8 Mathematics Selina Solutions are provided by Vedantu in a step-by-step method. Selina is the most famous publisher of ICSE textbooks. Studying these solutions by Selina Concise Mathematics Class 8 Solutions which are explained and solved by our subject matter experts will help you in preparing for ICSE exams. Concise Mathematics Class 8 ICSE Solutions can be easily downloaded in the given PDF format. These solutions for Class 8 ICSE will help you to score good marks in ICSE Exams 2019-20. The updated solutions for Selina textbooks are created in accordance with the latest syllabus. These are provided by Vedantu in a chapter-wise manner to help the students get a thorough knowledge of all the fundamentals. Mathematics is all about logic. Keeping this fact in mind, Vedantu tutors have planned the course in such a way that students will find it simple to understand how formulas are used to obtain the actual answers. Vedantu becomes their promising ladder and they can use it as a reliable reference guide for resolving the hardest equations in no time. The faculty has been working hard to find ways to turn Vedantu into a handy platform for each student. Vedantu not only provides you with the best study material but also guides you on how to utilize it in the right manner. You need to plan a well-framed timetable for this. There should be everyday study sessions without a single day miss, note-making should be your daily rituals, and you must not forget to c...

Mathematics_ _solutions Solutions for Class 8 Math Chapter 5 Expansion Formulae are provided here with simple step-by-step explanations. These solutions for Expansion Formulae are extremely popular among Class 8 students for Math Expansion Formulae Solutions come handy for quickly completing your homework and preparing for exams. All questions and answers from the Mathematics_ _solutions Book of Class 8 Math Chapter 5 are provided here for you for free. You will also love the ad-free experience on Meritnation’s Mathematics_ _solutions Solutions. All Mathematics_ _solutions Solutions for class Class 8 Math are prepared by experts and are 100% accurate. Answer: It is known that, x + a x + b = x 2 + a + b x + a b 1 a + 2 a - 1 = a 2 + 2 + - 1 a + 2 × - 1 = a 2 + 2 - 1 a - 2 = a 2 + a - 2 2 m - 4 m + 6 = m 2 + - 4 + 6 m + - 4 × 6 = m 2 + - 4 + 6 m - 24 = m 2 + 2 m - 24 3 p + 8 p - 3 = p 2 + 8 + - 3 p + 8 × - 3 = p 2 + 8 - 3 p - 24 = p 2 + 5 p - 24 4 13 + x 13 - x = - x + 13 x - 13 = - x 2 + 13 + - 13 x + 13 × - 13 = - x 2 + 13 - 13 x - 169 = - x 2 - 169 = 169 - x 2 5 3 x + 4 y 3 x + 5 y = 3 x 2 + 4 y + 5 y 3 x + 4 y × 5 y = 9 x 2 + 9 y × 3 x + 20 y 2 = 9 x 2 + 27 x y + 20 y 2 6 9 x - 5 t 9 x + 3 t = 9 x 2 + - 5 t + 3 t 9 x + - 5 t × 3 t = 81 x 2 + - 2 t 9 x - 15 t 2 = 81 x 2 - 18 x t - 15 t 2 7 m + 2 3 m - 7 3 = m 2 + 2 3 + - 7 3 m + 2 3 × - 7 3 = m 2 + 2 3 - 7 3 m - 14 9 = m 2 - 5 m 3 - 14 9 8 x + 1 x x - 1 x = x 2 + 1 x + - 1 x x + 1 x × - 1 x = x 2 + 1 x - 1 x x - 1 x 2 = x...

Maharashtra State Board 8th Standard Mathematics Solutions Guide Shaalaa provides solutions for Maharashtra State Board 8th Standard Mathematics Solutions Digest. Shaalaa is undoubtedly a site that most of your classmates are using to perform well in exams. You can solve 8th Standard Mathematics Book Solutions Maharashtra State Board textbook questions by using Shaalaa.com to verify your answers. This will help you practise better and become more confident. Balbharati Solutions for 8th Standard Mathematics Chapterwise List | 8th Standard Mathematics Digest The answers to the Balbharati books are the best study material for students. The following links are • • • • • • • • • • • • • • • • • Appears in • Concepts covered in Parallel lines and transversals are Alternate Angles Theorems, Corresponding Angle Theorem, Interior Angle Theorem, Pairs of Lines - Angles Made by a Transversal, Pairs of Lines - Transversal, Pairs of Lines - Transversal of Parallel Lines, Properties of Parallel Lines, To Draw a Line Parallel to the Given Line Through a Point Outside the Given Line Using Set-square., To Draw a Parallel Line to a Given Line at a Given Distance. Concepts covered in Indices and Cube root are Concept of Cube Number, Concept of Cube Root, Concept of Exponents, Cube Root Through Prime Factorisation Method, Dividing Powers with Different Base and Same Exponents, Dividing Powers with the Same Base, Meaning of Numbers with Rational Indices, Multiplying Powers with Different Base ...

ICSE Class 8 Maths Selina Solutions for Chapter 18 Constructions The chapter constructions come under the unit Geometry which discusses about drawing of shapes, angles or lines accurately. These constructions are done only by using a compass, straightedge and a pencil. In this chapter, you will learn pure form of geometric constructions of quadrilaterals where no numbers will be involved. For the convenience of the students, we have provided These Download ICSE Class 8 Maths Selina Solutions Chapter 18:- The exercise mentioned in Chapter 18 Constructions have a total of 15 questions and the detailed solutions of these questions are provided below. CHAPTER 18 – CONSTRUCTIONS Exercise Question 1. Given below are the angles x and y. Without measuring these angles, construct: (i) ∠ABC = x + y (ii) ∠ABC = 2x + y (iii) ∠ABC = x + 2y Solution:- (i) Steps of Construction: 1. Contruct a line segment BC of any suitable length. 2. Taking B as centre, construct an arc of any suitable radius. With the same radius, construct arcs with the vertices of given angles as centers. Consider these arcs to cut arc x at points P and Q and arms of angle y at points R and S. 3. From the arc, with B as centre, cut DE = PQ arc of x and EF = RS arc of y 4 Now join BF and produce up to point A. Therefore, ∠ABC = x + y (ii) Steps of Construction: Continue the same steps as in part (i) (i) Consider DE = PQ = arc of x. EF = PQ = arc of x and FG = RS = arc of y Now ...