A circular park of 28m diameter has been constructed. A 3.5m circular track outside has been developed along the park. Using algebraic formulae. find the area of the track around the park.
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R= 14+3.5=17.5 m
r=14m
Area around the park= π(R² - r²)
=22/7 (17.5² - 14²)=22/7(110.25)= 346.5 m²
r=14m
Area around the park= π(R² - r²)
=22/7 (17.5² - 14²)=22/7(110.25)= 346.5 m²
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