Question

6. The radius of the base of a cylindrical water
drum open at the top is 35 cm and height
1.3 m. Find the inner surface area of the
water drum.​

Answer 1

Step-by-step explanation:

Let a cylinder according to the question

Then apply formula of curved surface area that is [2pie rh] and then we get curve surface area

It is close from bottom so we add area of base that is ( pie rr) area of circle