Question

find the lenth and breath of a rectangle given that its perimeter is 960 cm and lenth is four times it's breath

Answer 1

Let the breadth , "b''---> be "x"
Length = l = 4x
We know that,
perimeter = 2( l + b)
960 cm = 2( 4x + x)
10x = 960
x = 96 cm

Breadth = 96 cm
Length = 4x = 384 cm

Answer 2

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$\underline{SOLUTION}$ ➡

Let,

Breath of the rectangle = x cm

•°• Length of the rectangle = 4x cm

Given,

Perimeter = 960 cm

=> 2 ( Length + Breadth ) = 960

=> 2 ( 4x + x ) = 960

=> 2 × 5x = 960

=> 10x = 960

=> x =$\frac{960}{10}$

=> x = 96

•°• Length of the rectangle = 4x

= ( 4 × 96 ) cm

= 384 cm

Breadth of the rectangle = x

= 96 cm

$\underline{ANSWER}$ ➡

Length of the rectangle = 384 cm

Breadth of the rectangle = 96 cm

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