Question

25=x^2+y^2
${a}^{2} = {x}^{2} + {y }^{2}$

Answer 1

Hey friend!!!


Here's ur answer...


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${x}^{2} + {y}^{2} = 25 - - - - (1) \\ \\ {x}^{2} + {y}^{2} = {a}^{2} - - - - - (2) \\ \\ \\ comparing \: (1) \: and \: (2) \\ \\ {a}^{2} = 25 \\ \\ so \\ a = + \sqrt{25} \: and \: - \sqrt{25} \\ \\ a = 5 \: or \: - 5$



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Hope it may help you...


Thank you :) :)))