An A frame cabin has a triangler front with a base of 30ft and a height of 20ft. If the front is to be glass that costs $3 per square foot, what will the glass cost?
To find the area of a triangle, use this formula:
A = 1/2*b*h
A = 1/2 * 30 * 20
A = 300 sq. feet
300 * $30 = ?
a=b*h/2
a=30*20/2
a=60/2
a=30sq ft
30*3=90
the glass will cost?
Ali -- how did you get 60 for the product of 30 * 20?
When I went to school 3 * 20 was 60.
Actually, you both made errors,
cost = (1/2)(30)(20)($3) =
= 300($3) = $900
Ooops. Thanks Reiny. I thought $9,000 seemed pretty steep.
To find the cost of the glass, we need to calculate the area of the triangular front of the A-frame cabin and then multiply it by the cost per square foot.
Step 1: Calculate the area of the triangular front
The formula to calculate the area of a triangle is: Area = (base * height) / 2
Given:
Base = 30ft
Height = 20ft
Area = (30 * 20) / 2 = 600 square feet
Step 2: Multiply the area by the cost per square foot
Given:
Cost per square foot = $3
Cost of the glass = Area * Cost per square foot = 600 * $3 = $1800
Therefore, the glass will cost $1800.