Question

If a chord of circle with radius 5 cm subtends a right angle at the centre , then length of chord is

Answer 1

Draw the Pic First :

Answer 2

Use pythagorus Theorem....

Answer 3

\[Chord = \sqrt{5^2+5^2}=\sqrt{50}=5\sqrt{2}\]

Answer 4

if it subtend a right a right angle it subtends 90 degrees therefore
lenght of chord=pi rx/180
=pi(5)90/180
= 5 (pi)/2=7.854 cm.....ans