Question

The perimeter of a rectangle is 180cm. Its l =65. Find breadth.​

Answer 1

The perimeter of a rectangle is 180cm. Its l =65. Find breadth.

Perimeter = 180 cm

Length = 65 cm

Breadth = ?

$\mathtt{perimeter \: of \: a \: rectangle = 2(l + b)} \\ \\ \implies\mathtt{180 = 2(65 + b)} \\ \\ \implies\mathtt{ \frac{180}{2} = 65 + b } \\ \\ \implies\mathtt{90 = 65 + b} \\ \\ \implies\mathtt{90 - 65 = b} \\ \\ \implies\mathtt{b = 25 \: cm \: \: ans}$

Answer 2

Perimeter of react angle is 2(l+b)