Question

Radius of a circle is 13 cm and the length of one of its cord is 10 cm . The distance of a cords from the centre is​

Answer 1

Given

radius = 13 cm

length of one of its chord = 10 cm

1/2 chord=10×1/2=5cm

Distance of the chord = $\sqrt{ {r}^{2} - {l}^{2} }$

$= \sqrt{ {13}^{2} - {5}^{2} } \\ \\ = \sqrt{169 - 25} \\ \\ = \sqrt{144} \\ \\ = 12 \: cm$