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x² + y² = 144 എങ്കിൽ വൃത്തത്തിന്റെ ആരം എത്ര ?

A14

B10

C12

D13

Answer:

C. 12

Read Explanation:

കേന്ദ്രം ആധാര ബിന്ദു ആയ വൃത്തം (x, y) എന്ന ബിന്ദുവിലൂടെ കടന്നു പോകുന്നു എങ്കിൽ വൃത്തത്തിന്റെ സമവാക്യം = x² + y² = r² x² + y² = 144 = r² r = 12


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