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प्रश्न
Find the distance of the following point from the origin :
(5 , 12)
उत्तर
PQ = `sqrt (("x"_2 - "x"_1)^2 + ("y"_2 - "y"_1)^2)`
`= sqrt ((12 - 0)^2 + (5 - 0)^2)`
= `sqrt (144 + 25)`
= `sqrt 169`
= 13 units.
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