Area of trapezoid

The parallel sides of a trapezoid are 9 dm and 7 dm. Its height is 3 cm. Calculate the area of the trapezoid.

Final Answer:

S =  240 cm2

Step-by-step explanation:

a=9 10=90 cm b=7 10=70 cm v=3 cm  S=2a+b v=290+70 3=240 cm2



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