A triangle has an area of 70 square inches. The height of the triangle is 8 3/4 inches. Write and solve an equation to find the length of the base.

Question

The base of the triangle 

 

Answer 1

You should know (permanently) that area of triangle is ½(bh), and I hope you know what those two letters mean.

 

Substitute what you do know, Area = ½(bh)  and solve for the unknown quantity.