Question

Consider similar figures QRS and TUV below where QRS is the pre-image of TUV

What is the scale factor?

Answer 1

The scale factor is 2.5 to 1 which is 1/2.5

Explanation:

Here, we want to get the scale factor in the given image

The scale factor we want to get is from the big to the small triangle

To get this, we find the ratio of the sides which are the same

Thus, we have ;

7/2.8 = 2.5

So the scale factor in this case is 2.5 to 1