Small drawing

  1. Making a scale drawing (video)


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Making a scale drawing (video)

You can use graph paper to help you make scale drawings. Plot a rectangle on a piece of graph paper at these coordinates: A(0,0) B(0,2) C(3,2) D(3,0) Now choose your scale factor. For our example, let's say the scale factor is 4. To graph the new rectangle, multiply each coordinate by 4 to get: A(0,0) x 4 = A'(0,0) B(0,2) x 4 = B'(0,8) C(3,2) x 4 = C'(12,8) D(3,0) x 4 = D'(12,0) You now have a new rectangle that is a scale factor of 4 of the original rectangle. Try graphing the following triangle on your own: A(0,0) B(3,2) C(4,0) Now using a scale factor of 2, graph the new coordinates. Here is something that is really cool. Did you notice anything about the original points and the new points? Pick any coordinate and it's matching scaled coordinate and draw a line connecting them. If you make the line long enough, all of the lines go through the origin! Great question and hope this helps <|:) Cole is an urban planner. He wants to create a small scale drawing of a city block. The block is a square with an area of 8,100 square meters. Create a scale drawing of the block using a scale factor of 0.1. So the first thing we could think about, they give us the area of the block. And it's a square block. So it has the same length and width. So we could use that information to figure out the length and width of that block. So if it's a square, so let's imagine a square block right over here. And that this is, I guess we could call that the length. And then this is also going to be ...