Question

find the area of sheet required for making a closed cylindrical tank of height 1m and base diameter 150cm​

Answer 1

Answer :-

The area of the sheet required is 11785.71cm².

Step-by-step Explanation

To Find :-

The area of sheet required for making a closed cylindrical tank of height 1m and base diameter 150cm.

★ Solution :-

Given that,

• Height of cylindrical tank = 1m
• Diameter of the base = 150cm.

Converting 1m to "cm" :-

→ 1m = 100cm.

∴ Height of cylindrical tank is 100cm or 1m.

Now, Radius of the base :-

→ Radius = Diameter/2

→ 150/2

→ 75cm.

____________________________

ө According the question,

Area of sheet = 2πr(r + h) sq. units,

Where,

r = Radius, h = Height.

→ 2πr(r + h)

→ 2 × 22/7 × 75(150 + 100)

→ 2 × 22/7 × 75(250)

→ 44/7 × 18750

→ 82500/7

→ 11785.71cm²

Answer 2

Question :-

find the area of sheet required for making a closed cylindrical tank of height 1m and base diameter 150cm.

Solution :-

Given :

• Height = 1m
• Diameter = 150cm

Need to find :

• Area of sheet required.

Formula :

Area of sheet = 2πr(r + h)

Height = 1m or 100cm

Radius = Diameter/2

= 150/2

= 75cm

We have,

• π = 22/7
• r = 75cm
• h = 100cm

By using formula,

✒ 2 × 22/7 × 75(150 + 100)

✒ 44/7 × 75(250)

✒ 44/7 × 18750

✒ 82500/7

✒ 11785.71cm²

The area of required sheet is 11785.71cm².

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