The perimeter and breadth of a rectangle are 84 cm and 8 cm respectively. Find the length of the rectangle. $[1 Mark]$

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Solution

Given:
Perimeter of the rectangle = 84 cm
Breadth of the rectangle = 8 cm

We know that
Perimeter of a rectangle = 2 (Length + Breadth)

$\Rightarrow$ 84 = 2 (Length + 8 )
$\Rightarrow$ 42 = Length + 8
$\Rightarrow$ Length = 42 - 8 = 34 cm
$∴$ Length of the given rectangle is 34 cm.

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