Question

a right angled triangle whose side at 12 cm and 5 cm is made of revolve about its hypotenuse find the volume of solid for men

Answer 1

It made to revolve about hypotenuse so,

 radius of Cone = 5 cm
and, height = 12 cm

So, Volume of cone = 1/3*π*r²*h
                                = 1/3*22/7*25*12
                                = 22*25*12/21
                                = 314.28 cm^2