Step 1: Let us consider two congruent circles (circles of the same radius) with

centres as O AND O'

EXAMPLE:

Step 2: Prove that the two triangles are congruent

NOTE: There are five ways to find if two triangles are

congruent: **SSS**, **SAS**, **ASA**, **AAS** and **HL**.

Step 3: Equate the radius of both the circles

NOTE: Congruent circles are circles that have congruent radii.

EXAMPLE: OA = O'C

OB = O'D

Step 4: Make sure that either central angles or chords of the circles are

equal or not.

NOTE: They will mention in the question (find the hint in the question)

Step 5: Recall all the congruent rules and identify the suitable rule.

EXAMPLE: According to SSS theorem these two circles are equal.

Step 6: Prove the given condition by using the congruent rules

NOTE: Two triangles are congruent if they have:

1) Exactly the same three sides and

2) Exactly the same three angles.