Question

An iron pole is 4 m high and 28 cm in diameter. Find its weight if the iron weighs 5 g per m³​

Answer 1

Answer:

1232 Kg

Step-by-step explanation:

Radius = Diameter/2=28/2=14

4m =400cm

volume = πr²h

22/7x14x14x400

22x2x14x400

=246400m³

WEIGHT = 246400x5

=1232000g or 1232Kg

Answer 2

Given :-

• Height of iron pole = 4 m.
• Diameter of the iron pole = 28 cm.

To Find :-

• Weight of the iron pole.

Solution :-

• Radius of the pole :-

➩ 28/2

➩ 14 cm

Converting centimeter to meters ↓

➩ 14/100

➩ 0.14 m.

Volume of the iron pole :-

2 h

➩ 22/7 × 0.14 × 0.14 × 4

➩ 22 × 0.02 × 0.14 × 4

➩ 0.2464 m^3.

Weight of the pole :-

• ➩ Volume × weight per volume.

• ➩ 0.2464 × 50

• ➩ 12.32 kg

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