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Area of sphere A1= 4 pi r^2=616
r^2=49 ==> r=7
Volume of teh sphere V= 4/3 pi r^3 =4312 / 3
Volume of cone= (1/3)hX pi R^2
area of base=pi R^2
Volume of cone and aphere are same
(1/3)hX pi R^2=4312 / 3
Can we prove Pythagoras Theorem by any other method given in the proof?If yes how?
How to prove that the perpendicular at the point of contact to the tangent to a circle passes through the centre of the circle.