calculate the surface area of a ball having 10 cm diameter
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Answer:
given that
diameter of ball=10cm
radius=d÷2=10÷2=5cm
surface area of sphere(ball)=4 pie r^2
=4×22÷7×5^2
=4×22/7×25
=2200/7
=314.28
therefore surface area of ball=314.28cm^2
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