Question

the length of a rectangle is 10 cm more than its width the perimeter is 100 cm find the dimensions​

Answer 1

Answer:

length=30 cm

Breadth =20 cm

Step-by-step explanation:

Let the breadth be x

so the length = x+ 10

2×(x+x+10)=100

2 (2x+10)=100

4x+20=100

4x=100-20

x=80÷4=20

breadth is 20

now the length is x+10 =20+10 =30cm

Answer 2

Let its width be x

So its length will be (x+10)cm

So 2(x+x+10)cm=100cm

    i.e 4x +20=100

     or 4x=100-20

      or 4x=80

       or x=80/4

        or x=20cm

So its length is (20+10)=30cm and breadth is 20cm