Cylinder 83040

The content of the casing of the rotary cylinder is three times greater than the content of one base of this cylinder. The radius of the base of the cylinder is 10 cm. What is the surface area of the cylinder?

Correct answer:

S =  1570.7963 cm2

Step-by-step explanation:

r=10 cm S1=π r2=3.1416 102314.1593 cm2  P=3 S1=3 314.1593942.4778 cm2  S=2 S1+P=2 314.1593+942.4778=1570.7963 cm2



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