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31 Cards in this Set
- Front
- Back
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Line segment joining the centre of the circle and the point on the circle |
Radius |
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Line segment whose end points are points on the circle |
Chord |
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Longest chord, it measures twice as long as the radius. It divides the circle into two parts |
Diameter |
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arc greater than 180° |
major arc |
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arc less than 180° |
minor arc |
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half circle or arc that is exactly180° |
semi circle |
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line passing through the circle at two points |
secant |
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line passing through the circle at one point |
tangent |
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bounded by 2 radi and intercepted arc |
sector |
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everything that involves measurement |
geometry |
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distance around the polygon |
perimeter |
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surface covered |
area |
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amount of space |
volume |
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statement that is considered true without proof |
postulate |
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accepted true until proven |
Theorem |
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set of all points equidistant from a fiven fixed point which is the center |
circle |
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distance around the circle |
circumference |
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point of intersection of a tangent on the circle |
point of tangency |
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an angle whose vertex is at the center of the circle and it's sides contain a radius of the same circle |
central angle |
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the measure of central angle of a circle is equal to the measure of its intercepted arc and vice versa |
central angle postulate |
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The measure of the arc formed by two adjacents is rhe sum of the two arcs |
Arc addition postulate |
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product of the ratio and the circumference of the circle |
arc length |
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The arc that lines in the interior of an inscribed angle and has endpoints on the angle is called |
Intercepted arc |
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If angle is inscribed in a circle, then the measure of the angle is equals one half the measure of its intercepted arc |
Intercepted arc theorem |
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If two inscribed angles of a circle or congruent circle intercept congruent arc, than the angles are congruent |
Inscribe angle of the same intercepted arc theorem |
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If an inscribed angle of a circle intercepts the semicircle, then the angle is right angle |
Semicircle Theorem |
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If a quadrilateral is inscribed in a circle then it's opposite angles supplementary |
Inscribed Quadrilateral Theorem |
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portion on the circle bounded by two points |
arc |
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bounded by a chord and intercepted arc |
segment |
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an angle whose vertex lies on the circle and its sides from a chord in the circle |
inscribed angle |
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the opposite angles of an inscribed quadilateral are supplementary |
inscribed quadrilateral theorem |
