Triangular prism

The triangular prism has a base in the shape of a right triangle, the legs of which is 9 cm and 40 cm long. The height of the prism is 20 cm. What is its volume cm3? And the surface cm2?

Correct answer:

V =  3600 cm3
S =  2160 cm2

Step-by-step explanation:

a=9 cm b=40 cm h=20 cm  c=a2+b2=92+402=41 cm  S1=2a b=29 40=180 cm2  V=S1 h=180 20=3600 cm3
o=a+b+c=9+40+41=90 cm  S=2 S1+o h=2 180+90 20=2160 cm2

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Tips to related online calculators
Tip: Our volume units converter will help you with the conversion of volume units.
See also our trigonometric triangle calculator.
Pythagorean theorem is the base for the right triangle calculator.

We encourage you to watch this tutorial video on this math problem: video1   video2   video3

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