Question

14. If the length of a rectangle is twice its breadth and its perimeter is 120 m, then its length
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Answer 1

Answer: 40m

Let breadth of a rectangle = x  

Then length = 2x

Perimeter = 2(x+2x)=2×3x=6x

6x=120

⟹x=20

Length =2x=20×2=40m

hope this helps you

Step-by-step explanation:

Answer 2

Answer:

40cm is your required answer..