Triangular prism

Calculate the surface area and volume of a three-sided prism with a base of a right-angled triangle, if its sides are a=3cm, b=4cm, c=5cm and the height of the prism is v=12cm.

Correct answer:

S =  156 cm2
V =  72 cm3

Step-by-step explanation:

a=3 cm b=4 cm c=5 cm v=12 cm  S1=2a b=23 4=6 cm2 o=a+b+c=3+4+5=12 cm  S=2 S1+o v=2 6+12 12=156 cm2
V=S1 v=6 12=72 cm3

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