Question

The perimeter of a rectangular sheet is 100cm. If the length is 35cm. Find it's breadth. Also find the area.

Find the breadth of a rectangular plot of land, if it's area is 440m² and the length is 22m. Also Find its Perimeter.

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Answer 1

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The perimeter of a rectangular sheet is 100cm. If the length is 35cm. Find it's breadth. Also find the area.

$\huge{\mathfrak{\overline{\underline{\underline{\green{Answer}}}}}}$

$Perimeter = \: 2(l + b) \\ 100cm = 2(l + b) \\ \frac{100}{2} = 35 + b \\ = 50 = 35 + b \\ 50 - 35 = 15cm \\ Area = l \times b \\ 35 \times 15 \\ = 525sq.cm$

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Find the breadth of a rectangular plot of land, if it's area is 440m² and the length is 22m. Also Find its Perimeter.

$\huge{\mathfrak{\overline{\underline{\underline{\orange{Answer}}}}}}$

$Area = 440sq.cm \\ 440sq.cm = 22 \times b \\ = \frac{440}{22} = 20 \\ breadth = 20m \\ Perimeter = 2(l + b) \\ = 2(22 + 20) \\ = 2 \times 42 \\ = 84m$

Answer 2

Step-by-step explanation:

2(l+b)=perimeter

=2(35+b)

35+b=50

b=15

area=lb

area=25*15

area=375

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