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Ch. 10 math
| Question | Answer |
|---|---|
| A ______ is the set of all points in a plane that are a given distance from a given point in a plane. | Circle |
| The point that names the circle is the ______ of the circle. | Center |
| The distance from the center to a point on the circle is the ______ | Radius |
| A ________ is the name for a chord that passes through the center | Diameter |
| A ________ is the same length as 2 radii. | Diameter |
| All radii of the same circle are _________. | Congruent |
| The circumference of a circle is ______ (equation) | dπ |
| The area of a circle is ______ (equation) | r²π |
| Length of an arc = ____ | %C % is measure of ark divided by 360. |
| Length of a sector = _____ | %A % is measure of ark divided by 360. |
| 2 or more coplaner circles that have the same center are called _______ | concentric |
| A ______ is any segment connecting any 2 points inside a circle, including diameter. | chord |
| If a radius is perpendicular to a chord, it _____ the chord | bisects. |
| If a radius bisects a non-diameter chord, it is ___________ to it. | perpendicular |
| The ________ of a chord passes through the center of the circle | perpendicular bisector |
| If 2 chords are equidistant, they're ________ | congruent |
| If 2 chord are congruent, they're ____________ | equidistant |
| A ______ is an angle that has its vertex at the center. | Central |
| A _____ is a line that intersects the circle at 2 points. | Secant |
| A ______ is a line that intersects at 1 point. | Tangent |
| Angle-Arc chart | Center = same measure On edge = arc is twice the angle. inside, not center = combination of 2 arcs divided by 2 is angle. outside = smaller arc-larger arc divided by 2 is angle. |
| If a parallelogram is inscribed in a circle, | It's a rectangle. |
| If a quadrilateral is inscribed in a circle, | It's opposite angles are supplementary. |
| If two chords intersect, the sum of the measures of one is equal to the sum of the measures of the other. | |
| If a secant and a tangent intersect at the vertex, the tangent squared is equal to the sum of the secant and external secant. | |
| If a secant and secant share a vertex, the sum of a secant and it's external secant is equal to the others secant and external secant. |
Created by:
stuarn1
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