Question

The ratio of length and breadth of a rectangle is 2:3. If its length is 4 cm, what will be its breadth? Also, find the perimeter of the rectangle?​

Answer 1

It's breadth is 6 cm and its perimeter is 20 cm

because length is 2x i.e 4

so if we understand breadth as 3x so 1st we have to find x i.e. 2x=4

x=4÷2=2

so 2 is x and then breadth is 3x i.e. 3 × 2=6

and perimeter is 2×(l+b)

i.e. 2×(6+4)

2×10=20 mark me brainliest if it is correct and if it is incorrect than rate me 1 star.

Answer 2

Answer:

Breadth = 6cm

Perimeter = 20cm

Step-by-step explanation:

let the unknown number be x

2 : 3 :: 4 : x

2x = 3*4(Cross multiplication)

2x = 12

x = 12/2

x = 6

breadth = 6cm

Perimeter = 2(l+b)

= 2(4+6)

= 2(10)

=20cm