The radius pf a sphere is 3.5cm.Find it's surface area and volume
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Answer:
Given data:
r=3.5cm
To find:
Surface area and volume of sphere
Formula:
A=4π r^2
V=4/3πr^3
Solution:
Surface area of sphere = 4π r^2
=(4×22×3.5×3.5)/7
=88×12.25 /7
=154cm^2
Volume of the sphere: 4/3πr^3
=4/3 ×22/7×3.5×3.5×3.5
=3773/21
=179.6cm^2
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