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Formula used to find the circumference of a circle is (i) 2 πr units (ii) πr^2 + 2r units (iii) πr^2 sq. units (iv) πr^3 cu. units

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Formula used to find the circumference of a circle is 

(i) 2 πr units

(ii) πr2 + 2r units 

(iii) πr2 sq. units 

(iv) πr3 cu. units

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2 Answers

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(i) 2πr units

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Formula used to find the circumference of a circle is .

(I)2  πr  units

(ii)πr2 sq . units

(iii)πr2 sq. units

(iv)πr3 cu.units
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