Question

The height of a triangle is 18 inches. Find the length of the base if the area of the triangle is 63 square inches

Answer 1

7 inches

Explanation:

Area = ½ base × height

63 = ½ × base × 18

63 = 9 × base

base = 7 inches

Answer 2

7 inches

Explanation:

The area of a triangle is found by

A = 1/2 bh

We know the height is 18 and the area is 63

63 = 1/2 (b)(18)

63 = 9b

Divide each side by 9

63/9 = 9b/9

7 = b

The base is 7 inches