Regular 4-sided pyramid

Find the area (surface area) of a regular 4-sided pyramid if its height is 20 m and the wall height is 23 m.

Correct answer:

S =  1560.9191 m2

Step-by-step explanation:

h=20 m h2=23 m  (a/2)2+h2=h22=232=529  a=2 h22h2=2 232202=2 129 m22.7156 m  S1=a2=22.71562=516 m2 S2=2a h2=222.7156 23=23 129 m2261.2298 m2  S=S1+4 S2=516+4 261.2298=1560.9191 m2



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



avatar







Tips to related online calculators
Pythagorean theorem is the base for the right triangle calculator.

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

Related math problems and questions: