Area of trapezoid

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

Correct result:

S =  162 cm2

Solution:

a=7 10=70 cm b=11 cm v=4 cm S=(a+b) v/2=(70+11) 4/2=162 cm2



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