Question

the perimeter of rectangle is 40 cm and breadth is 8cm find its length​

Answer 1

Answer:

12

Explanation:

perimeter =2l+2b=40

2*8+2b=40

2b=24

b=12

Answer 2

Explanation:

perimeter of rect. = 2(l+b)

40 = 2(l + 8)

20 = l + 8

12 = l