A circular swimming pool withba radios of 10mts is surrounded by an embankment if width 5mts find the difference and the area if the ciricle
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Radius of pool = 10 m
Radius of outer circle = radius of pool + width of the embankment
= 10 + 5 = 15 m
Difference between area of 2 circles = πR² - πr²
Where R is radius of bigger circle and r is the radius of smaller circle.
= πR² - πr²
= π (R²-r²)
= π (15² - 10²)
= π (225 - 100)
= π (125)
= 3.14 * 125
= 392.5 m²
Difference in the area of 2 circle is 392.5 m².
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