Question

The radius and height of a solid cylinder are 4 cm and 10 cm respectively. Find its total surface area

Answer 1

Answer:

352

Explanation:

r = 4

h = 10

total surface area formula :

2× pi × radius × height + 2 × pi × (raidus)²

=> 2 × 22/7 × 4 × 10 + 2 × 22/7 × (4×4)

=> 44 × 40 ÷ 7 + 44 × 16 ÷ 7

=> 1760 ÷ 7 + 704 ÷ 7

* LCM

=> 2464 ÷ 7 = 352 (ans)