Question

Area of a trapezoid = (1/2)(a + b)h, where a and b are the lengths of the two parallel sides and h is the altitude.

The area of a trapezoid is 375 m2. If the two parallel sides are 20 m and 30 m, respectively, what is the altitude of the trapezoid?

Altitude, h = ____ m.

A) 3.75
B) 7.5
C) 15

Answer 1

Area = (1/2)(a + b)h,

a + b = 20m + 30m = 50m

area = 375 m2.


=> h = 2 * area / (a + b)


h = 2 * (375m^2) / (50m) = 15 m




Answer: Altitude, h = 15 m.<----> this is the option C.