Question

Find the breadth of a rectangle whose perimeter is 360cm and length is 102cm

Answer 1

perimeter of rectangle= 2(l+b)
2×(102+ x)= 360
204+2x = 360
2x= 360-204=156
x= 78

Answer 2

Heya here is your answer....

Perimeter of rectangle =2(l+b)

So,

360=2(102+b)

180=102+b

78=b

Hence the breadth of rectangle is 78 cm

Hope it helps...