a circular pond as a 90cm wide footpath along its age a girl walks around the outer edge of the footpath with 50 cm long steps in 528 steps she makes one round what is the radius of the pond
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answer is 42 cm
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Step-by-step explanation:
Given a circular pond as a 90 cm wide footpath along its age a girl walks around the outer edge of the footpath with 50 cm long steps in 528 steps she makes one round what is the radius of the pond.
- So there is a circular pond with a width of 90 cm. So the girl walks around the outer edge of the footpath with 50 cm in length and covered 528 steps.
- Let the outer radius be R and inner radius be r
- So we get 528 x 50
- So 2πR = 528 x 50
- 2 x 22/7 x R = 26,400
- 2R = 1200 x 7
- R = 600 x 7
- R = 4200 cm
- R – r = 90 cm
- Or r = 4200 – 90
- r = 4110 cm
- So the radius of the pond is 4110 cm
Reference link will be
https://brainly.in/question/1959247
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