Question

100 Points, and I will give brainliest! PLEASE HELP
This figure is the pre-image of a prism that has undergone a dilation with a scale factor of ⅖.

What is the surface area of the image after the dilation?

Answer 1

Answer:

$\sf \bold{206 \dfrac{2}{25} \ in^2}$

After scale factor of ⅖ the sides:

• $\sf base:2.8 \ m$

• $\sf height: 9.6 \ m$

• $\sf hypotenuse:10 \ m$

• $\sf length : 8 \ m$

surface area of triangle:

⇒ base * height + perimeter of base * Length

⇒ 2.8 * 9.6 + ( 10 + 9.6 + 2.8 ) * 8

⇒ 26.88+ 179.2 m²

⇒ 206 2/25 m²