The length and breadth of a rectangle are $10 c m$ and $7 c m$ respectively. What will be the area of a rectangle formed by joining $2$ such rectangles?

250 cm

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100 cm

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680 cm

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460 cm

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Solution

The correct option is B
100 cm

Area of a rectangle $=$ length $\times$ breadth

$∴$ Area of the given rectangle $= 10 \times 7 = 70 c m^{2}$

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