A path of \( 4 \mathrm{~m} \) width runs round a semi-circular grassy plot whose circumference i...

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A path of \( 4 \mathrm{~m} \) width runs round a semi-circular grassy plot whose circumference is 163
\( \frac{3}{7} \mathrm{~m} \) Find:
\( P_{1} \)
(i) the area of the path
(ii) the cost of gravelling the path at the rate of \( ₹ 1.50 \) per square metre
(iii) the cost of turfing the plot at the rate of 45 paise per \( \mathrm{m}^{2} \).
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