Question

a chord of a circle of radius 6 cm is making and 60° angle at the centre find the length of the chord ​

Answer 1

Chord is making 60° angle so remaining two angle.

Let two angle as a and b

a+ b = 180-60

a+b = 120

radius of triangle are equal so their opposite angles will also equal.

So angle a = b angle

a = 60=b

And if all angles are equal than it is an equilateral triangle.

So chord = 6cm