Question

A triangular pane of glass has a height of 44 inches and an area of 440 square inches. What is the length of the base of the pane?

Answer 1

20 inches

Explanation:

The base, height, and area of a triangle are related by the formula ...

A = 1/2bh

If you know two of these, you can use this formula to find the third.

440 in² = 1/2b(44 in)

(440 in²)/(22 in) = b = 20 in . . . . . . divide by the coefficient of b

The length of the base is 20 inches.