Question

the ratio of the length and breadth of a rectangle is 3 ratio 1 and
the perimeter is 36 cm
what is the area

with explanation​

Answer 1

Answer:

ratio = 3:1

keeping the side= 3x

keeping the side= 1x

perimeter of rectangle =2*l+b

36= 2*( 3x +1x )

36= 8X

36/8=X

now = length of 1 side = 3* 36/8

= 108/8

length of other side = 36/8

area = L* B

3*36/8 * 36/8 = 60.75 cm ^2