Cylinder - basics

Cylinder with base radius r = 24 cm and height h=62 cm. Calculate:

a) Area of the base

Correct answer:

S1 =  1809.557 cm2
V =  112192.5568 cm3
o =  150.7964 cm
S2 =  9349.3797 cm2
S3 =  12968.4945 cm2

Step-by-step explanation:

r=24 cm h=62 cm  S1=π⋅ r2=3.1416⋅ 242=1809.557 cm2r = 24 \ \text{cm} \ \\ h = 62 \ \text{cm} \ \\ \ \\ S_{1} = \pi \cdot \ r^2 = 3.1416 \cdot \ 24^2 = 1809.557 \ \text{cm}^2
V=S1⋅ h=1809.5574⋅ 62=112192.5568 cm3≐1.122⋅105 cm3V = S_{1} \cdot \ h = 1809.5574 \cdot \ 62 = 112192.5568 \ \text{cm}^3≐ 1.122\cdot 10^{ 5 } \ \text{cm}^3
o=2π⋅ r=2⋅ 3.1416⋅ 24=150.7964 cmo = 2 \pi \cdot \ r = 2 \cdot \ 3.1416 \cdot \ 24 = 150.7964 \ \text{cm}
S2=o⋅ h=150.7964⋅ 62=9349.3797 cm2S_{2} = o \cdot \ h = 150.7964 \cdot \ 62 = 9349.3797 \ \text{cm}^2
S3=2⋅ S1+S2=2⋅ 1809.5574+9349.3797=12968.4945 cm2S_{3} = 2 \cdot \ S_{1} + S_{2} = 2 \cdot \ 1809.5574 + 9349.3797 = 12968.4945 \ \text{cm}^2

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