Cylinder - basics

Cylinder with base radius r = 54 cm and height h=35 cm. Calculate:

a) Area of the base

Correct answer:

S1 =  9160.884 cm2
V =  320630.9462 cm3
o =  339.292 cm
S2 =  11875.2202 cm2
S3 =  30196.9886 cm2

Step-by-step explanation:

r=54 cm h=35 cm  S1=π r2=3.1416 542=9160.884 cm2=9.16103 cm2
V=S1 h=9160.8842 35=320630.9462 cm3=3.206105 cm3
o=2π r=2 3.1416 54=339.292 cm
S2=o h=339.292 35=11875.2202 cm2=1.188104 cm2
S3=2 S1+S2=2 9160.8842+11875.2202=30196.9886 cm2=3.020104 cm2

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