Question

) Radius of base of a cylinder is 20 cm. and its height is 13 cm. find
its carved surface area and total surface area (r = 3.14)​

Answer 1

Answer:

Given: Radius (r) = 20 cm, height (h) = 13 cm  To find: Curved surface area and the total surface area of the cylinder  i. Curved surface area of cylinder = 2πrh  = 2 x 3.14 x 20 x 13  = 1632.8 sq.cm ii. Total surface area of cylinder = 2πr(r + h)  = 2 x 3.14 x 20(20 + 13)  = 2 x 3.14 x 20 x 33  = 4144.8 sq.cm  ∴ The curved surface area and the total surface area of the cylinder are 1632.8 sq.cm and 4144.8 sq.cm respectively.Read more on Sarthaks.com - https://www.sarthaks.com/852947/radius-base-cylinder-and-its-height-13-find-its-curved-surface-area-and-total-surface-area

Step-by-step explanation:

mark as brainliest