A square body has side $14 c m$ and mass $1080 g$ . The surface density of the body is

42 cm

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28 cm

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196 cm²

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56 cm

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Solution

The correct option is D
56 cm

Given,

Length of side = $14 c m$

Area of square = $S i d e l e n g t h \times S i d e l e n g t h$
= $14 c m \times 14 c m$
= $196 c m^{2}$

Surface density = $\frac{M a s s}{S u r f a c e a r e a}$

= $\frac{1080 g}{196 c m^{2}}$ = $5.5 g / c m^{2}$

Suggest Corrections

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The area of a square of side $14 c m$ will be:

The perimeter of a square of side 14 cm will be:

4.237 g

2.5 {cm}^{3}

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