Question

Perimeter of a rectangle is equal to 90 cm length is equal to 36 cm findis the breadth

Answer 1

length = 36cm .

Perimeter = 90cm

$\sf 2 \times (length + breadth) = 90cm \\\\\ \sf 2 \times (36 + breadth) = 90cm \\\\\ \sf (36 + breadth) = \frac {90}{2} = 45 \\\\\ \sf breadth = 45- 36 \\\\\ \sf = 9cm$