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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Tips to related online calculators
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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