Raghu had to make a cylindrical aluminium tube. What is the area of the aluminium sheet he needs to make the tube, if the tube has length of 1m and base radius of 3.5cm? (Take π = $\frac{22}{7}$ )

2200 m²

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220 m²

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2200 cm²

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220 cm²

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Solution

The correct option is C
2200 cm²

Surface area of cylinderical tube = 2πrh = 2 $\times$ $\frac{22}{7}$ $\times$ 3.5 $\times$ 100 = 2200 $c m^{2}$ .

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Q. Raghu had to make a cylindrical tube with an aluminium cover. What is the area of the aluminium sheet he needs to cover the tube if the tube has a length of 1m and base radius 3.5cm? (Take

π = \frac{22}{/} 7

)

Raghu needs to make a cylindrical aluminum tube. What will be the area of the aluminum sheet required to make the tube, if the length and radius of the tube should be 1 $m$ and 3.5 $c m$ respectively [Top and bottom of the tube are of another material]?

( $u s e π = \frac{22}{7}$ )

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Raghu had to make a cylindrical aluminium tube. What is the area of the aluminium sheet he needs to make the tube, if the tube has length of 1m and base radius of 3.5cm? (Take π = 227)

The correct option is C 2200 cm2 Surface area of cylinderical tube = 2πrh = 2 × 227 × 3.5 × 100 = 2200cm2.

Raghu had to make a cylindrical aluminium tube. What is the area of the aluminium sheet he needs to make the tube, if the tube has length of 1m and base radius of 3.5cm? (Take π = $\frac{22}{7}$ )

The correct option is C
2200 cm²

Surface area of cylinderical tube = 2πrh = 2 $\times$ $\frac{22}{7}$ $\times$ 3.5 $\times$ 100 = 2200 $c m^{2}$ .