Question

radius of a circle whose centre is (3,2) and passes through (-5,6)

Answer 1

$\sqrt{(x2 - x1) {}^{2} + (y2 - y1) {}^{2} }$
$\sqrt{( - 5 - 3) {}^{2} + (6 - 2) {}^{2} }$
$\sqrt{64 + 16 }$
$4 \sqrt{5}$
$8.94$

HOPE IT HELPS!!!