Math, asked by mritanikund, 1 year ago

Class8: The volume of a 5cm long cylindrical iron rod is30cm cube. Find its diameter.​

Answers

Answered by lianaarora15
1

Answer:

Volume of cylinder is pi.r sq.h

22/7.r.r.5=30

r. r = 42/22

= 2 (approx)

r = root 2

Diameter =2 root 2

Answered by gargnakul67
1

Answer:

Step-by-step explanation:

Height of cylinder=5cm

Volume of cylinder=30cm³

πr²h=30

22/7×r²×5=30

r²=30×7/22×1/5

r²=21/11

r=√21/11cm

Diameter=2×radius

Diameter=2×√21/11

Diameter=2√21/11cm

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