the curved surface area of a cone is 140 pie cm cube.and its slant height is 5cm.find the radius of cone?
Answers
Answered by
6
Answer:
radius=8.9 cm
Step-by-step explanation:
CSA of cone= 140 cm
L= 5cm
πrl=140
22/7*5*r=140
110/7*r=140
r=140*7/110
r= 14*7/11
r=98/11
r=8.9 cm
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Answered by
2
Answer:
Radius = 28 cm
Step-by-step explanation:
GIVEN
- C.S.A of a cone = 140π cm²
- slant height = 5 cm
- π = 22/7
SOLUTION
πrl = 140 π
22/7 x r x 5 = 140 x 22/7
r x 5 = 140
r = 140/5
r = 28 cm
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