Question

The perimeter of a rectangle is 100cm. What could be its length and breadth?​

Answer 1

Answer: If length of rectangle is x then breadth of this rectangle is (50-x). And vise versa also.

Step-by-step explanation:

Given that, perimeter of rectangle is 100.

Let, length of perimeter is x.

& Breadth of perimeter is y.

Then, 2×(x+y) = 100

=> x+y = 50

=> y = 50-x.

Answer 2

Step-by-step explanation:

2(l+b) = 100

If l = b

Then 2 (l+b) = 100

l+b = 100/2

l+ b = 50

As mentioned earlier l= b

So l = 25 = b

If l>b than

Let l be 2x and y be x

So 2(2x+x) = 100

2x + x = 50

3x = 50

x = 50/3

x = 18 2/3

So 2x = 2 × 50/3 = 100/3 = 33.33

and x = 50/3 = 16.66