MATH Q2 TERMS

• A Circle is a set of all points
• A radius is from the center to the circumference.
• A chord is a line segment that has end points on the circle.
• A diameter of a circle is a chord that passes through the center
• A line segment or a ray that intersects at exactly one point is called a tangent.
• The intersection of a tangent is called the point of tangency.
• Intersects a circle at exactly two points is called a Secant.
• The sum of the measures of the central angles of a circle with no interior in common is 360.
• The minor arc is the shortest arc
• The Major arc is the longest arc with edpoints that lie on a diameter
• Diameter is twice the length of the radius
• The chord is the straight line joining any two points on a circle
• The radius is the distance from the center to any point on the circumference
• A semicircle is an arc with endpoints that lie on a diameter.
• Theorem 10. 1 in the same circle or in congruent circles, two minor arcs are congruent of and only their central angles are congruent.
• Arc Addition Postulate the measure of an arc formed by two adjacent arcs is the sum of the measure of the two arcs
• An Inscribed Angle is a geometric figure which touches only the sides of another figure
• The Inscribed Angle Theorem the measure of an inscribed angle is one half the measure of its intercepted arc.
• The Inscribed Angles in the same Arc Theorem two ore more inscribed angles in the same arc are congruent
• The Semicircle Theorem an angle inscribed in a semicircle is a right angle.
• Inscribed Quadrilateral Theorem opposites of an inscribed quadilateral are supplementary.
• The circumference is the distance around a circle