Question

1) the diameter of right circular cylinder is 7 cm and its height is 16 cm. find
the total surface area of the cylinder?​

Answer 1

SA(cylinder)=2(pi)r(r+h)
=2 * 22/7 * 7/2 * ( 7/2 + 16 )
=2 * 11 * 19.5
=11 * 39
=429cm2