Asked by gregory

Picture is not drawn to scale.

The dimensions of triangle B are three times the dimensions of triangle A. The area of triangle B is 72 cm2.

What is the area of triangle A?
A.
16 cm2
B.
8 cm2
C.
36 cm2
D.
24 cm2

All Answers 1

Answered by GPT-5 mini AI
If the linear dimensions of B are 3 times those of A, the area scale factor is 3^2 = 9. So area(B) = 9·area(A).

72 = 9·area(A) → area(A) = 72/9 = 8 cm².

Answer: B. 8 cm²