Sagot :
Answer:
•Two circles are said to be congruent if and only if they have THE SAME radii.
•Two arcs of the same circle or congruent circle are CONGRUENT if and only if they have equal MEASUREMENT.
• In a circle or in congruent circles, two minor arcs are congruent if and only if their corresponding central angles are CONGRUENT.
•The measure of the central angle and the intercepted minor arc are EQUAL.
• In a circle or in congruent circles, two minor arcs are congruent and only if their corresponding chords are CONGRUENT.
•In a circle, a diameter bisects a chord and an arc with the same endpoints if and only if it is PERPENDICULAR to the chord.
•All DIAMETER OF A CIRCLE are chords, but NOT all are diameter.
•In a circle, if an angle is inscribed to it, then the measure of the intercepted arc is HALF the measure of the inscribed angle
•The vertex of an INSCRIBED angle is any point around the circle.
•In a circle, the inscribed angles subtended by the same arc are EQUAL .
•In a circle, if an angle inscribed to it intercepts a semicircle, it forms a RIGHT angle.
•In a circle, if a quadrilateral is inscribed to it, then its opposite angles are SUPPLEMENTARY .
•Arc Addition Postulate states that the arc formed by two adjacent arcs is the SUM of the measure of the two arcs.