Question

The perimeter of a rectangle is 12x cm. If the length is double the breadth, then find it's area
dents like. this question is for 15 marks ​

Answer 1

Step-by-step explanation:

let the breadth be x

let the length be 2x

x + 2x + x + 2x = 12cm

6x = 12cm

x = 12/6

x = 2

breadth = x

= 2cm

length = 2x

= 2 x 2

= 4cm

Area = length x breadth

Area = 2cm x 4cm

Area = 8cm²

Answer 2

Answer:

it's breadth =?

= m

it's length = 2m

p.of a rectangle = 2l + 2b

= 12 cm

= 2(2m) + 2(m)

= 4m+2m

= 6m

m = 12/6

=2

length =2m = 2*2=4

breadth = 2

perimeter = 2(l+b)

=2(4+2)

=12

area of a rectangle = l*b

= 4*2

=8²

Tq if helped thank IN return