niraulabidushi319 niraulabidushi319

01-12-2020
Mathematics

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There are two solid hemispherical objects made of clay having the same shape and size. If the total surface area of one hemispherical object is 462 square cm, find the total surface area of the sphere which is formed by attaching those two hemispherical objects.

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alfierigabby alfierigabby

01-12-2020

radius=7,tsa of spheres is 616sq.cm

hemisphere = 462 square cm
Radius=7cm
Now,
TSA of sphere=4×22÷7×7×7
=616 sq.cm

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