a cone of height 8 m has a curved surface area 188.4 square meters.find its volume.
Answers
Answered by
13
h=8m
CSA = 188.4
⇒2πrh = 188.4
⇒r = 188.4/2πh = 188.4/(2×3.14×8) = 3.75m
volume = πr²h = 3.14×3.75²×8 = 353.25 m²
CSA = 188.4
⇒2πrh = 188.4
⇒r = 188.4/2πh = 188.4/(2×3.14×8) = 3.75m
volume = πr²h = 3.14×3.75²×8 = 353.25 m²
Answered by
6
2πrh= curved surface area
so
2πrh=188.4
so
2*22/7*r*8=188.4
find r
so
2πrh=188.4
so
2*22/7*r*8=188.4
find r
rajusetu:
r is 353.something
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