The volume of a circular iron rod of leanght 1 m is 3850cm.find its diameter.
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Answer:
The diameter of the circular iron rod is 7 cm.
Step-by-step explanation:
Given length = 1m = 100cm
Volume of circular iron rod = 22/7×r²×h
3850 = 22/7×r²×100
= 2200r²/7
2200r² = 3850 × 7
r² = 3850 × 7 / 2200
= 12.25
r = root square of 12.25
r = 3.5
Therefore, diameter = 2r = 2×3.5 = 7(answer).
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