how do you figure the surface area of a right circular cylender

The height is 20cm and the radius is 2cm
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1 Answer

cylinder, radius=2, hite=20, want surfus area

side area=hite* serkel rim-leng=hite*2*pi*radius

=20*2*2*3.141592654...

=80*3.14159...

=251.3274...

##### area av 2 serkels at both ends=2*pi*radius^2

=2*2*2*3.14159

=8*3.14159

=25.132741...

251+25=bout 276
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