Question

URGENT PLEASE HELP!!!!
Use the figure to find the measures.

Area triangle DEF =

Answer 1

The scale factor is the ratio of corresponding sides:

• k = DE/AB = 1/4

The area is the product of two dimensions so the ratio of areas is:

• k² = (1/4)² = 1/16

The area of ΔDEF:

• A = 12*1/16 = 3/4 or 0.75