Question

The length of a rectangle is 40 cm. The bredth is 10% less than length. find the perimeter and area of the shap​

Answer 1

Hey mate here is ur answer

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Step-by-step explanation:

$length(l) = 40cm \\ breadth = 10\% \: less \: than \: length \\ 10\% \: of \: length = 40 \times \frac{10}{100} = 4cm \\ therefore: \\ breadth (b)= 40cm - 4cm = 36cm \\ \\ perimeter = 2(l + b) \\ = 2 \times (40 + 36)cm \\ = 2 \times 76cm \\ = 152cm \\ \\ area \: of \: rectangle = l \times b \\ = 40cm \times 36cm \\ = 1440 {cm}^{2} \: ans :$

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