Question

5. The height of a cylinder is 14.2 cm and LSA is 787. Find the radius and volume of this cylinder.​

Answer 1

Answer:

h =14.2

LSA = 787

$2\pi \times r \times h$

2pi r h = 787

2 ×22/7×r×14.2 = 787

r = 787×7/2×22×14.2

r = 5509/624.8

r = 8.82cm

volume = 1/3 pi(r)2 h

1/3 ×22/7×(8.82)2×14.2

24302.35/21

1157.25cm3

Answer 2

Answer:

Answer:

h =14.2

LSA = 787

2\pi \times r \times h2π×r×h

2pi r h = 787

2 ×22/7×r×14.2 = 787

r = 787×7/2×22×14.2

r = 5509/624.8