Trapezoidal base

Calculate the surface and volume of a quadrilateral prism with a trapezoidal base, where a = 7 cm, b = 4 cm, c = 5 cm, d = 4 cm, height of trapezium v = 3.7 cm and the height of the prism h = 5 cm.

Correct answer:

S =  144.4 cm2
V =  111 cm3

Step-by-step explanation:

a=7 cm b=4 cm c=5 cm d=4 cm  v=3.7 cm h=5 cm  S1=2a+c v=27+5 3.7=5111=22.2 cm2 o=a+b+c+d=7+4+5+4=20 cm S2=o h=20 5=100 cm2  S=2 S1+S2=2 22.2+100=5722 cm2=144.4 cm2
V=S1 h=22.2 5=111 cm3

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