Q. 175.0( 1 Vote )

# If the curved sur

Answer :

Given : CSA of hemisphere = 2772 sq.cm

To find : TSA of hemisphere = ?

Formula : CSA of hemisphere = 2 r2

TSA of hemisphere = r2

Solution : CSA of hemisphere = 2 r2

2 r2 = 2772

2 × × r2 = 2772

r2 = = 441

r = 21 cm

TSA of hemisphere = r2 = 3 × × 21 × 21 = 4158 cm2

The total surface area of the solid hemisphere is 4158 cm2.

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