.How much metal sheet is required to make a closed cylindrical canister of radius 7cm and height 15 cm?
Answers
Answered by
1
Step-by-step explanation:
Amount of sheet required to make tank=total surface area of cylinder
r=7m h=3m
=2\pi r\left(r+h\right)2πr(r+h)
==2\times\frac{22}{7}\times7\left(7+3\right)=2×
7
22
×7(7+3)
=44\times1044×10
=440\ m^2440 m
2
this was for hieght 3m
hope it will help you doing this
Answered by
2
Given :
- Radius of Cylindrical = 7 cm
- Height of Cylindrical = 15 cm
To find :
- how much metal sheet is required to make the closed cylindrical.
Solution :
⇒ Let's find the Total surface of the cylinder, to find much metal sheet is required.
The total surface of cylinder = 2πr(h + r)
= 2 × 22/7 × 7 (15 + 7)
= 22/7 × 14 (22)
= 22/7 × 14 × (22)
= 22/7 × 308
= 22 × 308/7
= 6776/7
= 968 m²
- Therefore, 968 m of metal sheet is required to make a closed cylindrical.
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