Question

if the area of a rectangle is 11 cm² then what is its perimeter​

Answer 1

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Area = $11cm^{2}$

$\frac{1}{2} \times b \times h = 11 \\ = > bh = 22 \\ = > 2b = 22 \\ = > b = 22 \div 2 \\ = > b = h = 11cm$

Perimeter = 11 + 11 + 11 = 33cm