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
A. 16 cm2
Given that the dimensions of triangle B are three times the dimensions of triangle A, we can say that the ratio of the areas of triangle B to triangle A is 9:1 (3^2).
If the area of triangle B is 72 cm2, then the area of triangle A would be 1/9 of 72 cm2, which is 8 cm2.