Triangular pyramid

What is the volume of a regular triangular pyramid with a side 3 cm long?

Correct answer:

V =  3.182 cm3

Step-by-step explanation:

a=3 cm  h1=a2(a/2)2=32(3/2)22.5981 cm  h=h12(h1/3)2=2.59812(2.5981/3)2=6 cm2.4495 cm  S1=a h1/2=3 2.5981/23.8971 cm2  V=31 S1 h=31 3.8971 2.4495=3.182 cm3

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

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

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