find the curved surface area of cylinder of radius 21 cm and height 28 CM by pi is equals to 22/7
Answers
Answered by
2
Answer:
r = 21 cm
h = 28 cm
π = 22/7
C.S.A. = 2πrh
= 2 * 22/7 * 21 * 28
=3696 cm²
Answered by
1
Answer:
Step-by-step explanation:
CSA OF CYLINDER = 2 PI r h
radius = 21 cm
height = 28 cm
curved surface area= 2 x 22/7 x 21 x 28
= 3696cm^2
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