Question

The perimeter of a rectangle is 300 cm. If its is 70cm long then it's breadth is.

Answer 1

Answer:

2×(70+b)=300

140+2b=300

2b=300-140

2b=60

b=30

Answer 2

Answer:

70 ×2 =140 is length of rectangle .

300-140= 160

length of rectangle is 70.

breadth of rectangle is 80.