Question

the wheel of a car rotated thousand times in travelling a distance of 1.76 km .find the radius of the

Answer 1

Circumference of the circle = 2pi r
$= \frac{1.76km}{1000} \\ = \frac{1760m}{1000} = 1.76m$


$= > 2\pi \: r = 1.76 \\ = > r = \frac{1.76}{2\pi} \\ = > r = \frac{176 \times 7}{100 \times 2 \times 22} \\ = > r = \frac{7}{25}m = 0.28m.$



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