an iron pole is 4m high and 28cm in diameter find its weight if the iron weighs 50 kg per m^3
Answers
Answer :
- volume of pole is 2464 m³
- weight is 12.32 kg
Given :
- height is 4m
- Diameter is 28cm
To find :
- weight
Solution :
- Radius = 28/2 = 14cm = 14/100 = 0.14cm
- Radius is 0.14 cm
As we know that :
- volume of the pole = πr²h
where r is 0.14, h is 4m
➳ volume of the pole = πr²h
➳ volume of the pole = 22/7 × 0.14 × 0.14 × 4
➳ volume of the pole = 22 × 0.02 × 0.14 × 4
➳ volume of the pole = 0.2464 m³
∴Hence , Volume of pole is 0.2464 m³
Now we have to find the weight :
Given that, the iron weight is 50kg per m³
- weight = volume × weight per volume
➳ weight = 0.2464 × 50
➳ weight = 12.32 kg
∴Hence weight is 12.32kg
Answer:
Answer :
volume of pole is 2464 m³
weight is 12.32 kg
Given :
height is 4m
Diameter is 28cm
To find :
weight
Solution :
Radius = 28/2 = 14cm = 14/100 = 0.14cm
Radius is 0.14 cm
As we know that :
volume of the pole = πr²h
where r is 0.14, h is 4m
➳ volume of the pole = πr²h
➳ volume of the pole = 22/7 × 0.14 × 0.14 × 4
➳ volume of the pole = 22 × 0.02 × 0.14 × 4
➳ volume of the pole = 0.2464 m³
∴Hence , Volume of pole is 0.2464 m³
Now we have to find the weight :
Given that, the iron weight is 50kg per m³
weight = volume × weight per volume
➳ weight = 0.2464 × 50
➳ weight = 12.32 kg
∴Hence weight is 12.32kg