The radius of a sphere is3.5 cm.Find its surface area and volume
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The radius of a sphere is3.5 cm.Find its surface area and volume
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Answer:
Radius of sphere = 3.5 cm
Volume of Sphere = \frac{4}{3} \pi r^{3}
3
4
πr
3
= \frac{4}{3} \times 3.14 \times (3.5)^{3}
3
4
×3.14×(3.5)
3
= 179.503 cm^3179.503cm
3
Surface area of sphere = 4\pi r^{2}4πr
2
= 4\times 3.14 \times (3.5)^{2}4×3.14×(3.5)
2
= 153.86 cm^2153.86cm
2
Hence the surface area of sphere is 153.86 cm^2153.86cm
2
and the Volume is 179.503 cm^3179.503cm
3
Verified answer
Radius of Sphere = 3.5 cm
SURFACE AREA = 4πr²
= 4 x 22/7 x 3.5 x 3.5
= 88/7 x 3.5 x 3.5
= 154 cm²
VOLUME = 4/3 π r³
= 4/3 x 22/7 x (3.5)³
= 88/21 x 42.8
= 201.98 cm³