The radius of a circle is 13cm .a chord is a distance of 5cm from the centre.the length of the chord is ?
Mathematics · Middle School · Wed Jan 13 2021
llm
Answered on
Applying phythogoras theorem :
C² = a² + b²
C = 13 cm
And
a = 5 cm
(13)² = (5)² + b²
b² = 169 - 25
b² = 144
b = 12
Now, length of chord = 2 × 12 cm
= 24 cm