Question

If the area A of a triangle is 72, and the height h is equal to the length of the base b, what is the length of the base?

A= 1/2 bh

Select one
A. 9
B. 12
C. 11
D. 5

Answer 1

12

Explanation:

12 x 12= 144

144/2= 72

Answer 2

option B

Explanation:

let the height=x

base=x

Area=½bh

72=½x•x

72×2=x²

144=x²

x=√144=12