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# Question 8

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. Looking to do well in your science exam ? Learn from an expert tutor. Book a free class!

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 = \pi r^{2}

= (22/7) × 21 × 21

= 22 × 3 × 21

= 1386 \mathrm{m}^{2}

Hence, the area of the horse can graze is 1386 \mathrm{m}^{2}.

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