AREA OF CIRCULAR PRISM-1

Find area of the following circular prism which is closed on both sides

Solution

Area = 2∏rh + 2∏ x r²

=(2 x 22 x 35⁵ x 100) + (2 x 22 x 35⁵ x 35)

           7₁                                7₁

=(2 x 22 x 5 x 100) + (2 x 22 x 5 x 35)

                                           

=(44 x 500) + (44 x 5 x 35)

=22000+ 7700

=29700

Hence area is 29700 cm²