please solve them
22.Find the volume of a sphere whose surface area is 154 sq cm.
23.A right triangle ABC with sides 5cm, 12cm and 13cm is revolved about the side
12cm. Find the volume of the solid so obtained.
24.The following observations have been arranged in ascending order. If the median
of the data is 63, find x: 29, 32, 48, 50, x, x+2, 72, 78, 84, 95
22.Find the volume of a sphere whose surface area is 154 sq cm.
23.A right triangle ABC with sides 5cm, 12cm and 13cm is revolved about the side
12cm. Find the volume of the solid so obtained.
24.The following observations have been arranged in ascending order. If the median
of the data is 63, find x: 29, 32, 48, 50, x, x+2, 72, 78, 84, 95
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2 x pi x r² = 154
r² = 24.5
r=4.9
Volume = 2/3 x pi x r³
= 2/3 x 3.14 x [4.9]³
= 246.27 cubic cm