Question

any body help me fast time up​

Answer 1

Answer:

Length = 60 cm and width = 30 cm

Step-by-step explanation:

Let the width of the rectangle be x cm

So, Length = 2x cm

Perimeter = 180 cm

So, Perimeter = 2(l+w)

180 = 2( 2x + x)

180/2 = 3x

3x = 180/2

3x = 90

x = 90/3

x = 30 cm

So,

Length = 2x = 2 x 30 = 60 cm

Width = x = 30 cm

Answer 2

Solution:

• Let the length of rectangle be x cm
• So the length of rectangle =2x
• Perimeter of rectangle = 180cm

$\purple\implies \color{pink}\: 2(2x + x) = 180 \\ \: \purple \implies \color{lime}3x = \frac{ \cancel{180 \tiny90}}{ \cancel2 \tiny1} \\ \purple \implies \color{lime} x = \frac{90}{3} \\ \purple \implies \color{lime} \: x = 30 \\ \sf \color{orange}\: Thus, \: Width \: Of \: Rectangle = 30cm \\ \tt \color{blue} Length \: of \: Rectangle = 2 \times 30 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \color{blue} = 60cm$