Question

the perimeter of a rectangle is 100 CM and it's length is 30 CM. what is the breadthof the rectangle ​

Answer 1

Answer:

20

Step-by-step explanation:

formula

perimeter = 2×(L+B)

place the values

100=2×(x+30)

100=2x+60

100-60=2x

40/2=x

20=x

Answer 2

Answer:

20 cm

Step-by-step explanation:

perimeter =100 cm

length=30 cm

we know that,

perimeter =2(length +breath)

100=2(30+ breath)

100/2=30+breath

50-30 =breath

20 = breath