Question

the perimeter of a rectangle is 12cm the area is 5 squares centimetre what is the length of its side​

Answer 1

Answer:

2(L+B) = 12, or

L+B = 12/2 = 6, or

B = 6-L …(1)

LB=5 , or

B = 5/L …(2)

Equate (!) and (2)

6-L = 5/L

6L-L^2=5

L^2–6L+5=0

(L+5)(L-1) = 0

So L = 1 and B = 5/1 = 5

So the rectangle is 5 cm x 1 cm. Answer