Question

the length of rectangle is twice its breath.what is length ,if the parimeter is 90cm​

Answer 1

$\bf{YOUR \: QUESTION}$

The length of rectangle is twice its breath.what is length , if the perimeter is 90cm.

$\bf \blue{REQUIRED \: ANSWER}$

• Let the Breath be x
• Length = 2x

Perimeter= 2(L+B)

90 = 2(2x+x)

90=6x

x= 15

Then 2x= 30

• Length= 30
• Breath= 15

Hope it's helpful for you. ✔️

Answer 2

Length = 30 cm

Step-by-step explanation:

GIVEN

Length = 2 × Breadth

Perimeter = 90 cm

___________________________

TO FIND

Length

___________________________

We know that,

Perimeter Of Rectangle = 2 × ( Length + Breadth )

Perimeter Of Rectangle = 2 × ( 2x + x )

90 = 2 × ( 2x + x )

90 = 2 × 3x

90 = 6x

x = 90 / 6

x = 15

Breadth = 15 cm

___________________________

We know that,

Length = 2 × Breadth

Length = 2 × 15

Length = 30

Length = 30 cm