the surface area of a sphere is 10802/7 sq cm. what is its volume.
Answers
Answered by
1
Step-by-step explanation:
Given surface area of sphere is 1018
7
2
=
7
7128
cm
2
∴4πr
2
=
7
7128
⇒4×
7
22
×r
2
=
7
7128
⇒r
2
=
4×22
7128
=81
⇒r=9 cm
So volume of sphere =
3
4
πr
3
.
=
3
4
×
7
22
×(9)
3
=3054.86cm
Answered by
1
Answer:
Volume of sphere is 5700 cm³
Step-by-step explanation:
Given : Surface area of sphere = 10802/7 sq. cm
Volume of the sphere = ?
Solution : Surface area of the sphere = 4 π R² , R- radius
∴ 4πR² = 10802/7
4 x 22/7 x R² = 10802/7 ∵ π = 22/7
R² = 10802/88
= 122.75
R = 11.08 cm
Volume of Sphere = 4/3 x π x R³
= 4/3 x 22/7 x 11.08³
= 5700 cm³
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