Question

please solve 12 number​

Answer 1

Answer:

Step-by-step explanation:

l² = r² + h²

l² = 12² + 3.5²

l² = 156.25

l = √156.25 = 12.5m .

Now,

Lateral surface Area = π rl = 3.14 ( 12.5)( 12 ) = 471 m²

Therefore, Required length of canvas = 471m²