Question

14. Circumference of base of a right
circular cylinder is 15 cm and its curved
surface area is 465 sq.cm . It's height is​

Answer 1

Answer:

C.S.A. of cylinder =4400 sq. cm.

⇒2πrh=4400

⇒(110)h=4400

⇒h=

110

4400

=40 cm

Height =40 cm

Circumference of base of cylinder 110 cm

⇒2πr=110

⇒2×

7

22

×r=110

⇒r=

2

35

⇒r=17.5 cm

Diameter 2r=2(

2

35

)=35 cm

Step-by-step explanation:

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