A circular park of a diameter 30m is surrounded by a circular path of uniform width 5m find the area of the path
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Areaofthepath=π(R²−r²)
\sf Here,Here,
\sf R = \frac{30 }{2} + 5= 15 + 5 = 20mR=
2
30
+5=15+5=20m
\sf r = 20 - 5 = 15mr=20−5=15m
\sf Area \: of \: the \: path = \pi (20² - 15²)Areaofthepath=π(20²−15²)
\sf ⇒ \frac{22}{7} \times 175⇒
7
22
×175
\sf ⇒550 \: {cm}^{2}⇒550cm
2
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