Question

from point P,5cm away from the centre of a circle,a tangent of a length 4cm is drawn.then the radius of the circle is

Answer 1

Solution is given below ...................

Answer 2

given C(O,r) PO=5cm PA=4cm
To find OA
Sol Angles between radius and tangent of circle is right angle
angle PAO=90
in rt Δ
${po }^{2} = {oa}^{2} + {pa}^{2} \\ {5}^{2} = {oa}^{2} + {4}^{2} \\ \sqrt{25 - 16} = oa \\ \sqrt{9} = oa \\ 3 = oa \\ hope \: it \: help \: you \: and \: you \: mark \: it \: as \: a \: brainlist \: answer$