Question

The distince
of a(0,0) & B(5,12)
​

Answer 1

$\red{d = \sqrt{ {(x1 - x2)}^{2} + {(y1 - y2)}^{2} } } \\ \\ a = (0 \: \: 0) = (x1 \: \: y1) \\ \\ b = (5 \: \: 12) = (x2 \: \: y2) \\ \\ \pink{d = \sqrt{ {(x1 - x2)}^{2} + {(y1 - y2)}^{2} } } \\ \\ d = \sqrt{ {(0 - 5)}^{2} + {(0 - 12)}^{2} } \\ \\ d = \sqrt{25 + 144} \\ \\ d = \sqrt{169} \\ \\ d = 13$