Question

5. Jethe length of a rectangle is four times its breadth and the perimeter of a rectangle is 90 metre find the dimension of the rectangle ​

Answer 1

Answer:

Step-by-step explanation:

i cant understand pls tell me how pls

Answer 2

Answer:

Let breadth=b

     length = 4b

Then,

2(4b+b)=90 (Perimeter formula for rectangle= 2x(l+b))

8b+2b =90(Opened the brackets by multiplying 2 which length and the breadth)

10b=90

b=90/10=9

If b=9m

4b(length)=94=36m

Verification:-

2x(l+b)

2x(9+36)

= 2 x 45

= 90m