Question

a)the perimeter of a rectangle is 30 m its length is 10 metre find its breadth .

b)
the perimeter of a square is 48 cm find its area .​

Answer 1

Answer:

perimeter of rectangle=2(l×b)

30m=2(10m×b)

30m=20m×2b

-2b=20m-30m

-2b=-10m

b=-10÷-2

b=5m

Step-by-step explanation:

minus minus will b cut

answer is 5m