Question

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

Answer 1

First, find the area of the triangluar shape. The formula for the area of a triangle, is:

$A=\frac{1}{2}b\times h$

Use b=30ft and h=20ft:

$\begin{gathered} A=\frac{1}{2}(30ft)\times(20ft) \\ =300ft^2 \end{gathered}$

Since the cost per square foot is $3, multiply 300 times 3 to find the total cost of the glass:

$300\times3=900$

Therefore, the cost will be $900.