Question

The breadth of the rectangle whose perimeter is 360 CM and length is 100 cm

Answer 1

Hey there!

Let the breadth be B.
Perimeter of rectangle = 2(l+b)
360 = 2(100+B)
360 = 200 + 2B
360 - 200 = 2B
160 = 2B
80 = B
or B = 80 cm

Check:

Perimeter of rect. = 2(l+b)
360 = 2(100+80)
360 = 2 x 180
360 = 360
LHS = RHS

Hence, the breadth of rectangle = 80 cm

Answer 2

80 cm will be the answer