Question

The volume of 1m iron rod is 1,386 cm”. Find its diameter.​

Answer 1

Answer:

Step-by-step explanation:

Volume of a cylinder = πrsquarex height

volume of iron rod = 1,386 cm cube

Pie x r square x height = 1386

22/7 x r square x 100 cm = 1386

r square = 1386 x 7/ 22 x 100

therefore, r = 2.1 cm

hence diameter= 2 x 2.1

diamter of iron rod = 4.2 cm

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