Q60. The radius of a circle is 20 cm. It is divided into four parts of equal area by drawing three concentric circles inside it. Then, the radius of the largest of three concentric circles drawn is: (Take n = 3.14) a. 10,5 cm b. 10/3 cm C. 10 cm d. 102 cm
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The radius of the largest of three concentric circle is 10√3 cm. Among the given options option (b) 10√3 cm is the correct answer
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