Question

Two cylinders A and Bare formed by folding a rectangular sheet
dimensions 20 cm x 10 cm along its length and also along its bread
respectively. Then volume of A is ........
of volume of B.​

Answer 1

Answer: 2

Step-by-step explanation:

For A perimeter of cylinder = 2piR = 20

R=20/2pi = 10/pi = 10/3.14= 3.18

Vol. of cylinder = pixRxRxH = 3.14x3.18x3.18x10 = 318 cm3

For B 2 x pi x R = 2x3.14xR = 10 = 1.59

Vol. = pi x R xR xH = 3.14 x 1.59 x 1.59 x 20 = 159 cm3

Vol of A/B = 318/ 159

=2 ans

Answer 2

Answer:

2

Step-by-step explanation: