Maths
posted by Priyanka .
The radius of a circle is 8cm, and the length of one of its chords is 12cm. Find the distance of the chord from the centre.

You can create a rightangled triangle
with hypotenuse = 8 , (the radius)
base of 6 , (1/2 your chord)
and the height unknown, call it x
x^2 + 6^2 = 8^2
x^2 = 28
x = √28 = 2√7 
The radius of a circle is 13 cm and the lenth of one of its chords is 10 cm. Find the distance of the chord from the centre
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