Question

Perimeter = ?
Length = 2x
Breadth = x​

Answer 1

P = 2(l+b)

= 2(2x + x)

= 2(3x)

= 6x

= x = 6

Length = 2x = 2×6 = 12

Breadth = x = 6

P = 2(l+b)

P = 2(12+6)

P = 2×18

P = 36

Answer 2

$\huge\sf \pmb{\orange {\underline \pink{\underline{\:Ꭺ ꪀ \mathfrak ꕶ᭙ꫀя \: }}}}$

WE KNOW THAT

perimeter= 2(l+b)

perimeter=2(2x+x)

perimeter= 6x

$★ \sf \pmb {\underline{More \: Information :}}$

• Perimeter of Rectangle = 2(l+b)

• Area of Rectangle= length× breadth

• Area of Rohmbus= (d1×d2)/2

• Area of Trapezium= 1/2(sum of parallel sides)×h

___________________________