Question

the length and breadth of a rectangle are in. ratio 5:3 if it's perimeter is 80 cm find its length and breadth​

Answer 1

Answer:

length = 25cm , breadth = 15cm

Step-by-step explanation:

let the length be 5x and breadth be 3x

2(5x+3x) = 80

8x =40

x= 5

Answer 2

Answer:

Lenght: 25 cm.

Breadth: 15 cm.

Step-by-step explanation:

Ratio of the Length and Breadth of the Rectangle: 5:3.

Let the Length and Breadth of the Rectangle be 5x and 3x, respectively.

Perimeter of the given Rectangle: 80cm.

Perimeter of Rectangle: 2×(l+b) unit.

Therefore, we get,

2(5x+3x) = 80

{Transposing 2 to RHS...}

→ 8x = 80/4

→ 8x = 40

{Transposing 8 to RHS...}

→ x = 40/8

→ x = 5

Lenght of the Rectangle: 5x →5×5 →25cm.

Breadth of the Rectangle: 3x →3×5 →15cm.

Checking the Solution...

Lenght of the Rectangle: 25 cm.

Breadth of the Rectangle: 15 cm.

Perimeter of the Rectangle: 2×(l+b) unit.

→2 × (25 + 15)

→2 × 40

→80 cm.

Given Perimeter of the Rectangle: 80cm.

80cm = 80cm.

{Condition Satisfied...}

Hence the Length and Breadth of the Rectangle are 25cm and 15cm, respectively.

{Hope it helped you...}

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