A cubical block of side 7cm is surmounted by a hemisphere.what is the greatest diametre the hemisphere can have?find the surface area of the solid
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the hemisphere is mounted on the cubical block
the diameter of the hemisphere = the side of the cube = 7cm
TSA of the solid = TSA of cube - Area of base of hemisphere + CSA of hemisphere
=> TSA = 6×7² - π×(3.5)² + 2×π×(3.5)²
=>TSA = 6×7² + π×(3.5)²
=> TSA = 332. 465 cm²
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