The area of curved surface of cylinder is 660 cm^2. Its height is 15 cm. What is the radius?
Curved area of cylinder formula = 2Πrh
(Π=pi )
Answers
Solve = Given :-
Curved surface area of cylinder = 660 cm^2
Height. = 15 cm
Find,
What is the radius.
Curved surface area of cylinder = 660 cm^2
2πrh = 660
2 × 22 × r × 15 = 660
___
7
2 × 22 × r × 15 = 660 × 7
2 × 22 × r = 660 × 7
_______
15
r = 660 × 7
_________
15 × 22 × 2
r = 4620
____
660
r = 38.5 cm
Answer :- So, They radius will be 38.5 cm.