Question

An isosceles triangle has two sides of equal length, a, and a base, b. The perimeter of the triangle is 15.7 inches, so the equation to solve is 2a + b = 15.7

Answer 1

15.7 - 2a

Explanation:

Perimeter = 15.7 inches

2a + b = 15.7

b = 15.7 - 2a