Question

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Q1.1- the curved surface area of a cylinder is 4400cm2 and the circumference of it's base is 110cm. find the height and the volume of the cylinder
​

Answer 1

Answer:

Explanation:

Circumference of its base =110cm

2πr=110

2×

7

22

​

×r=110

7

44

​

×r=110

r=17.5cm

Curved Surface Area =4400cm

2

2πrh=4400

2×

7

22

​

×h×17.5=4400

7

44

​

×17.5×h=440

h=

40

4400

​

×2.5

h=40cm

Volume = πr

2

h

=

7

22

​

×17.5×17.5×40

=38500cm

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