# Area of trapezoid

The trapezoid bases are and 7 dm and 11 cm. His height is 4 cm. Calculate the area of trapezoid.

Result

S =  162 cm2

#### Solution:

$a = 7 \cdot \ 10 = 70 \ cm \ \\ b = 11 \ cm \ \\ v = 4 \ cm \ \\ S = (a+b) \cdot \ v/2 = (70+11) \cdot \ 4/2 = 162 = 162 \ cm^2$

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