Cylinder 11141

The area of the cylinder shell is 300 cm², the height of which is equal to the diameter of the base. Find the surface of the cylinder.

Correct answer:

S =  450 cm2

Step-by-step explanation:

S1=300 cm2 h = D = 2r S1 = 2 π r h  = π   D  h = π D2  D=S1/π=300/3.14169.7721 cm r=D/2=9.7721/24.886 cm  S2=π r2=3.1416 4.8862=75 cm2 S=S1+2 S2=300+2 75=450 cm2

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