Math, asked by prince1054, 10 days ago

13. A circular pond has a 90cm wide footpath along the edge. A man walks around the outer edge of the footpath with 66cm long steps. In 400 steps, he makes a full round. What is the radius of the pond? ​

Answers

Answered by aniketzare11
2

Answer:

4110cm is the correct answer

Step-by-step explanation:

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Answered by Anonymous
6

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  • Man's step = 66cm long
  • No. of step= 400cm

Therefore,Total Distance Travelled

 = 66 \times 400 \\  = 26400 \: cm

We Know That,

Circumference =

2\pi r

 2\pi\ r = 26400 \\  \pi =  \frac{26400 \times 7}{2 \times 22}  \\   = 600 \times 7 \\  = 4200 \: cm

Now,

The path(foothpath is also there)

ie 90 cm

So,the radius of pond=

 = 4200 - 90 \\  = 4110 \: cm

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