Question

A triangle has one side that is 5 inches long and the other two sides are both of length x. Write an expression for the perimeter of the triangle in terms of x.

Answer 1

Explanation:

Perimeter of triangle = sum of all three sides of triangle

A = 5 inches

B = x inches

C = x inches

perimeter = 5 + x + x

Perimeter = 2x + 5