Anonymous Anonymous

01-11-2014
Mathematics

Answered

a trapezoid has an area of 20cm squared and a height of 5 cm. what is the sum of its top and bottom sides

Verified Answer :

01-11-2014

\(A=\frac{a+b}{2} h\)
A - area
h - height
a+b - sum of its top and bottom sides

\(20=\frac{a+b}{2} \cdot 5 \\ 4 = \frac{a+b}{2} \\ a+b=8\)

The sum of its top and bottom sides is 8 cm.

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