Question

(b) The length of a multiplex is 45 metres less than 2 times the breadth of the multiplex. What is the length, if the breadth is x meters. _______________
Give proper answer.
step by step explanation​

Answer 1

Question :-

The length of a multiplex is 45 metres less than 2 times the breadth of the multiplex. What is the length, if the breadth is x meters.

Given,

Breadth(b) = 'x' metres

length (l) = ${x}^{2}$ - 45 metres

Perimeter of rectangle = 2 (l+b)

(P) = 2 {(${x}^{2}$-45)+${x}^{2}$}

(P) = 2${x}^{2}$-90+2 ${x}^{2}$

(P) = 90cm