Question

A boundary need to be fenced with a rope whose length is 2m . if the length is 10m and breadth is 20m of the boundary . find the number of rop needed​

Answer 1

Answer:

2 m

Step-by-step explanation:

10÷20=2 m

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Answer 2

→ Values

Length of the rope = 2 m

Length of the ground = 10 m

Breadth of the ground = 20 m

→ Solution

Perimeter of a rectangle  

= 2 (l + b)

= 2 x (10 + 20)

= 2 x 30

= 60 m

No. of ropes required:

$\sf{=\dfrac{Perimeter\:of\:the\:ground}{Length\:of\:the\:rope}}$

$\sf{=\dfrac{60}{2}$

= 30 ropes

Hence, 30 ropes are required to form a boundary for a ground of length 10 m and breadth 20 m.

Important formula related to rectangles:

Area = length x breadth

Perimeter = 2 x (length + breadth)