Find the radius of the wheel if the wheel rotates 100 times to cover 500 m.(a) 0.07 m(b) 0.47 cm(c) 0.79 m(d) 0.57 cmI had been asked this question by my college director while I was bunking the class.I would like to ask this question from Perimeter and Area of a Circle topic in division Area Related to Circles of Mathematics – Class 10

Find the radius of the wheel if the wheel rotates 100 times to cover 5

1.	Find the radius of the wheel if the wheel rotates 100 times to cover 500 m.(a) 0.07 m(b) 0.47 cm(c) 0.79 m(d) 0.57 cmI had been asked this question by my college director while I was bunking the class.I would like to ask this question from Perimeter and Area of a Circle topic in division Area Related to Circles of Mathematics – Class 10
Answer» Right OPTION is (c) 0.79 m The best I can explain: One ROTATION of the wheel = circumference of the wheel 100 rotations = 500 m 1 rotation = 5 m So, circumference = 5 m 2πr = 5 m r = 5 × \(\frac {7}{22} \times \frac {1}{2}\) r = 0.79m

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