Question

please solve question number 11 ​

Answer 1

Step-by-step explanation:

11. Given, Length of a rectangle x+6

Breadth x

Perimeter 80 cm

Find the length and the breadth

Perimeter of the rectangle= 2(l+b) cm

80 cm = 2(x+x+6) cm

80 cm = 2(2x+6) cm

80 cm = 4x+12 cm

(80-12) cm = 4x

68 cm = 4x

68 cm = x

4

17 cm = x

Therefore,

The Length of the rectangle is

(6+x) cm

(6+17) cm

23 cm

The Breadth of the rectangle is

x cm

17 cm

Check

Finding Perimeter

= 2(l+b)

= 2(23+17) cm

= 2(40) cm

= 80 cm

Verified ✔

Thanks...

Answer 2

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