In the diagram, ab is a tangent to the circle, centre o. d is the mid-point of the chord bc. given that bac = x, find cod in the term of x.

in term of x

Step-by-step explanation:

Given that AB is tangent to a circle with center O and radius of OC=OB

D is the mid-point of the chord BC and D is 90

Here, Angle BAC = x.

From figure,

AC is a straight line.

we can write as

Since D is the mid-point of the chord BC

We know,

Angle opposite to sides are congruent

So,

Now, In triangle AOB

Therefore,

Therefore.

Thus,

45 minutes

step-by-step explanation:

angle addition postulate

2x=56

step-by-step explanation: