Q) Four times the area of curved surface of cylinderis equal to 6 tinm

1.	Q) Four times the area of curved surface of cylinderis equal to 6 tinmes the sum of area of its bases. If itsheight is 12cm, find the curved surface area
Answer» ANSWER: CURVED SURFACE AREA= 2πrh sq.cm Area of the BASE = πr² sq.cm. Sum area of the base= πr²+πr²= 2πr²sq.cm A.T.Q 4(2πrh)= 6×2πr² 8πrh=12πr² 2h=3r 2×12=3r r=8cm. Curved Surface Area=2πrh = 2×22/7×8×12 =4224/7 = 603.42 sq.cm

Q) Four times the area of curved surface of cylinderis equal to 6 tinmes the sum of area of its bases. If itsheight is 12cm, find the curved surface area

Answer»

ANSWER:

CURVED SURFACE AREA= 2πrh sq.cm

Area of the BASE = πr² sq.cm.

Sum area of the base= πr²+πr²= 2πr²sq.cm

A.T.Q

4(2πrh)= 6×2πr²

8πrh=12πr²

2h=3r

2×12=3r

r=8cm.

Curved Surface Area=2πrh

= 2×22/7×8×12

=4224/7

= 603.42 sq.cm

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Q) Four times the area of curved surface of cylinderis equal to 6 tinmes the sum of area of its bases. If itsheight is 12cm, find the curved surface area​

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Q) Four times the area of curved surface of cylinderis equal to 6 tinmes the sum of area of its bases. If itsheight is 12cm, find the curved surface area