Question

A triangular pane of glass has a height of 46 inches and an area of 460 square inches. What is the length of the base of the pane?
The length of the base of the pane is ___ inches.

Answer 1

One formula for the area of a triangle is:  A  =  ½·b·h

Since A = 270 and h = 30:  270 = ½·b·30

                                           270  =  15·b

                                             18  =  b