Question

The formula for the area of a triangle is a=1/2bh . If the base of the triangle is 6x units and has a height of x+3, write a simplified algebraic expression for the area of the triangle in terms of x

Answer 1

a = 3x^2 +9x

Explanation:

Put the given dimensions in the formula and simplify. The distributive property is useful.

a = (1/2)bh

a = (1/2)(6x)(x+3) = 3x(x +3)

a = 3x^2 +9x