Question

Find the angle subtended by
two chords having length
equal to the radius of the circle
at the centre when they share a
common end point.​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation

ab=dc= radii of the circle.

in triangle AOB

A0=OB=AB

Thus triangle AOB is an equilateral triangle.

Similarly,

triangle COD is an equilateral triangle.

all angles in an equilateral are 60°.

thus ∠AOB and ∠COD are 60°.

∠AOB+∠COD= 60°+60°

=120°