What is the length of the base of the triangle?

Question

A triangle has an area of 221.16 square inches. The height of the triangle is 29.1 inches. What is the length of the base of the triangle?

Answer 1

the area of a triangle is (b*h)/2. so A = (b*h)/2

now when plugging in the values we know, 221.16 = (b*29.1)/2

multiply both sides by 2, so 442.32 = b*29.1

divide both sides by 29.1 so 15.2 = b

15.2 inches = base