How to

How to find a total surface of a rectangular pyramid if each face is to be 8 dm high and the base is 10 dm by 6 dm.

Correct answer:

S =  202.0439 dm2

Step-by-step explanation:

a=10 dm b=6 dm h=8 dm  h1=h2+(b/2)2=82+(6/2)2=73 dm8.544 dm h2=h2+(a/2)2=82+(10/2)2=89 dm9.434 dm  S1=2a h1=210 8.544=5 73 dm242.72 dm2 S2=2b h2=26 9.434=3 89 dm228.3019 dm2 B=a b=10 6=60 dm2  S=2 S1+2 S2+B=2 42.72+2 28.3019+60=202.0439 dm2



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Pythagorean theorem is the base for the right triangle calculator.
See also our trigonometric triangle calculator.

 
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