Question

the perimeter of a rectangle is 230 cm and its length is 70 cm find its breadth

Answer 1

Answer:

perimeter = 230

length= 70

perimeter of rectangle =2(l+b)

230= 2(70+b)

230= 140+2b

2b= 230-140

2b = 90

b = 90÷ 2

b= 45

Thankyou

Answer 2

Step-by-step explanation:

perimeter of rectangle = 230cm, l = 70cm, b = ?

so,

perimeter of rectangle = 230cm

2(l + b) = 230

2(70 + b) = 230

140 + 2b = 230

2b = 230 - 140

2b = 90

b = 90/2

b = 45