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bija089 [108]
3 years ago
13

2. It is required to make a closed cylindrical tank of height 1 m and base diameter 140 cm

Mathematics
1 answer:
4vir4ik [10]3 years ago
7 0

Answer:

It's required 7.48\ m^2 of sheet for the tank

Step-by-step explanation:

<u>Surface Area of a Cylinder</u>

Given a right cylinder of base radius r and height h, the surface area is calculated as follows:

S=2\pi r^2+2\pi r h

The cylindrical tank has a height of h=1 m and a base diameter of 140 cm. The radius is half the diameter, thus r=140/2 = 70 cm = 0.7 m. Substituting:

S=2\pi 0.7^2+2\pi (0.7)(1)

S=2\pi 0.49+1.4\pi

S=2.38\pi

\boxed{S=7.48\ m^2}

It's required 7.48\ m^2 of sheet for the tank

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