Question

7The height of a Cylinder is 15cm. Its
Curved surface area is 660cm2. Find
its the radius​

Answer 1

Answer:h=15cm

CSA=660cm

r=?

CSA=2pieRh

=2×22÷7×R×15

=44×15/7

=660÷7cm

=94.285cm

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Step-by-step explanation:

Answer 2

Answer:

HERE .. HEIGHT OF CYLINDER= 15cm

AND CURVED SURFACE AREA=660 sq. cm

LET R BE ITS RADIUS.

THEN

C. S. A OF CYLINDER = 2πRH

OR 660 = 2×22/7×R×15

OR R = 660×7/2×22×15

OR R= 4620/660

OR R = 7

HENCE THE REQD. RADIUS OF THE CYLINDER IS 7cm.

HOPE YOU UNDERSTAND IT...