Triangular prism

Calculate the volume and surface of the triangular prism ABCDEF with base of a isosceles triangle. Base's height is 16 cm, leg 10 cm, base height vc = 6 cm. The prism height is 9 cm.

Correct result:

V =  432 cm3
S =  420 cm2

Solution:

a=16 cm r=10 cm v=6 cm h=9 cm S1=a v/2=16 6/2=48 cm2 V=S1 h=48 9=432 cm3
o=a+2 r=16+2 10=36 S2=o h=36 9=324 S=S2+2 S1=324+2 48=420 cm2

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