Multiple Choice Questions
The height of a cone is 15 cm. If its volume is 1571.4 cm. Then radius of the base is
(a) 10cm
(b) 15cm
c) 5 cm
(d) none of these
Answers
Answered by
1
Answer:
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Answered by
3
Answer:
(a) 10cm
Step-by-step explanation:
Volume of area =31πr2h
Given, h=15cm
V=1570 cm3
31×722×r2×15=1570
r2=15×221570×3×7
=99.909
r= 99.909
≅10cm.
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