A chord of a circle of radius 26cm is 10cm from the centre of the circle . Calculate the length of the chord

Answer 1

Draw the perpendicular from the centre to the chord.
You are now looking at a right-angled triangle with a height of 10
a hypotenuse of 26 and a missing base of x
x^2 + 10^2 = 26^2

find x, and remember that x is only half the chord