math question?

Question

A-frame cabin has a triangular front with a base of 30 ft and a
height of 20 ft. If the front is to be glass that costs $3 per square foot, what will the
glass cost?
Find the area of the shaded

Answer 1

Area of triangle is half the base times the height.

a = 1/2 * b * h
a = 1/2 * 30 * 20
a = 300 square feet

The area of the front of the cabin is 300 square feet. If glass costs $3 per square foot, the cost would be $3 * 300 = $900.

The answer is $900.

Answer 2

You will never look at this, but if you do, just remember in the simplest terms, an equilateral triangle is half of a rectangle. Know how to get the area of a rectangle. Good. Multiply by cost per sq. foot because ft x ft = ft^2