Question

the side of a triangle are in the ratio 2: 3 and perimeter is 20 cm find the length and breadth of the rectrangle​

Answer 1

Answer:

Step-by-step explanation:

Let length=3x

Breadth=2x

P= 2(l+b)

20=2(3x+2x)

20=2(5x)

20=10x

x=2

Therefore, length =3x=6

Breadth=2x=4

Answer 2

Answer:

Step-by-step explanation:

let x be the common factor,

∴the sides are 2x and 3x according to the ratio

perimeter of a triangle⇒20= 2(length+breadth)

according to the problem,

⇒2(2x+3x)=20

⇒2 × 5x=20

⇒10x= 20

⇒x= 20÷10

⇒x= 2

∴the sides are,

2x= 2×2

   =4 cm

3x= 3×2

   =6 cm