Pyramid 4sides

Calculate the volume and the surface of a regular quadrangular pyramid when the edge of the base is 4 cm long and the pyramid's height is 7 cm.

Correct answer:

V =  37.3333 cm3
S =  74.2409 cm2

Step-by-step explanation:

a=4 cm h=7 cm  S1=a2=42=16 cm2  V=S1 h/3=16 7/3=37.3333 cm3
h2=h2+(a/2)2=72+(4/2)2=53 cm7.2801 cm S2=a h2/2=4 7.2801/2=2 53 cm214.5602 cm2  S=S1+4 S2=16+4 14.5602=74.2409 cm2



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Tip: Our volume units converter will help you convert volume units.
See also our right triangle calculator.
See also our trigonometric triangle calculator.

You need to know the following knowledge to solve this word math problem:


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

Related math problems and questions: