Four horses are tethered at four corners of a square plot of side 63 metres so that they just cannot reach… · ABC26GN4661
Subject: General Aptitude · Chapter: Area
Four horses are tethered at four corners of a square plot of side 63 metres so that they just cannot reach one another. The area left ungrazed is
(a)$675.5 \mathrm{m}^{2}$
(b)$780.6 \mathrm{m}^{2}$
(c)$785.8 \mathrm{m}^{2}$
(d)$850.5 \mathrm{m}^{2}$
Answer
Explanation
Required area $=\left(63 \times 63-4 \times \frac{1}{4} \times \frac{22}{7} \times \frac{63}{2} \times \frac{63}{2}\right) \mathrm{m}^{2}$ $$=850.5 \mathrm{m}^{2} .$$
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