Question 77170
Rose’s garden is in the shape of a trapezoid. If the height of the trapezoid is 16 m, one base is 20 m, and the area is 224 m2, find the length of the other base.
Area of a trapezoid= A=1/2h(B+b)
:
.5h(B+b = A
:
.5(16)(20+b) = 224; find b
:
8(20+b) = 224
160 + 8b = 224
8b = 224 - 160
8b = 64
b = 64/8
b = 8
:
Check:
.5(16)(20+8) =
8 * 28 = 224