Answer:
The altitude of the trapezoid is 60 feet.
Step-by-step explanation:
Trapezoid
Sum of the bases: B+b=280 feet
Area of the trapezoid: A=8,400 feet^2
Altitude of the trapezoid: h=?
The formula to calculate the area of a Trapezoid is:
A = (1/2) (B+b) h
Replacing the given values:
8,400 feet^2 = (1/2) (280 feet) h
(1/2) (280 feet) = (140 feet)
8,400 feet^2 = (140 feet) h
Solving for h: Dividing both sides of the equation by 140 feet:
8,400 feet^2 / (140 feet) = (140 feet) h / (140 feet)
60 feet = h
h = 60 feet
Answer: The altitude of the trapezoid is 60 feet.
