Question

The dashed triangle is the image of the pre-image solid triangle.

What is the scale factor used to create the dilation?

Enter your answer in the box
13p! help

Answer 1

4

Explanation:

The solid triangle dilated to become the dashed triangle.

Compare two corresponding sides. For example, the vertical side of the solid triangle measures 3 units. The vertical side of the dashed triangle measures 12 units. 12/3 = 4. The dilation is 4. The scale factor is 4.

Answer 2

Scale factor: 4

Explanation:

Let m be scale factor.

We have been given two triangles such that dashed triangle is image of the pre-image solid triangle.

First of all, we will find length of bases of both triangles by counting the units.

Base of pre-image: 2 units.

Base of image:
`3-(-5)=3+5=8` units.

We know that after multiplying a side of pre-image by scale factor, we get image.

`2\cdot m=8`

`(2\cdot m)/(2)=(8)/(2)`

`m=4`

Therefore, the scale factor for given diagram is 4.