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A horse is tied to a pole in a park with a string 21 m long. Find the area over which the horse can graze. |
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Answer» From the question, Horse is tied to a pole, then the pole will be the central point and the area over which the horse will graze will be a circle. The string by which the horse is tied will be the radius of the circle. Then, Radius of the circle, r = length of the string = 21 m Then, area of the circle = πr2 = (22/7) × 21 × 21 = 22 × 3 × 21 = 1386 m2 Hence, the area of the horse can graze is 1386 m2. |
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