Question

1. Find the surface areas and volumes of spheres of the following radii.
(ii) 9 cm ​

Answer 1

Answer:

Here, radius= 9cm

Therefore surface area= 4×22÷7×9×9

=1018.29 sq. cm( apprx.)

and volume= 4÷2×22÷7×9×9×9

=4582.29 cm cube( approx.)

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Answer 2

i hope this will help you