Page 4 - Acticity- 1-SA of cylinder

Question 7:
What will be the curved surface area of a cylinder if its height is 3 times of its radius ?
Answer:

Question 8:
What will be the curved surface area of a cylinder if its height is equal to the diameter of
the base ? Answer:

Multiple Choice Questions

Question 1:
The curved surface area of a right circular cylinder of height 14 cm is 88 cm . The
2
diameter of the base of
the cylinder is
(a) 2 cm
(b) 1 cm
(c) 1.5 cm
(d) none of these

Question 2:
The curved surface area of a right circular cylinder is 4.4 m . If the radius of the base of
2
the cylinder is
0.7 m, find its height.
(a) 2 m
(b) 1.5 m
(c) 1 m
(d) none of these

Question 3:
A cylindrical pillar is 5 m in diameter and 3.5 m in height. Find the cost of painting the
curved surface of the pillar at the rate of Rs.12.50 per m 2
(d) Rs. 69.75
(b) Rs. 687.5
(c) Rs.67.75
(d) none of these

Question 4:
A rectangular sheet of paper 44 cm x 18 cm is rolled along its length and a cylinder is
formed. The radius of the cylinder is
(a) 7 cm
(b) 9 cm