CSA of a hemisphere is 77cm2.radius of hemisphere.find?
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CSA of hemisphere = 77
2 *pi *r^2 = 77
=> 2*22*r^2 /7 = 77
=> r^2 = 77 * 7/44
=> r^2 = 7 * 7 / 4
=> r = 7/2 cm
Radius of hemisphere = 3.5 cm or 7/2 cm
2 *pi *r^2 = 77
=> 2*22*r^2 /7 = 77
=> r^2 = 77 * 7/44
=> r^2 = 7 * 7 / 4
=> r = 7/2 cm
Radius of hemisphere = 3.5 cm or 7/2 cm
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