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Find Side Find Angle/Arc Theorems Definitions
$100
Find side measure
9
x
15
12
X=20
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Find side measure
5
x
3
X=5
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Find side measure
4
6
18
x
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X=12
Find side measure
8
x
12
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X=4
Find side measure
x9
11
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__________X=-9+√565
2
Find Angle/Arc measure “x”
78ºX º
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X=39
Find Angle/Arc measure “x”
47º
Xº
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X=47
Find Angle/Arc measure “x”
255º15xº
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X=5
Find Angle/Arc measure “x”and “y”24yº
9yº
4xº
14xº
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X=9
Y=6
Find Angle/Arc measure “x”
xº_2
(x+30)º
(x+70)º
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X=100
Find Theorem
If a line is tangent to a circle, then it is
to the radius drawn to the point of tangency.
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perpendicular
Find Theorem
If two segments from the exterior point are tangent to a circle, then they are
___________
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Congruent
Find Theorem
In the same circle, or in congruent circles, two chords are congruent if and only if
___________________
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Their corresponding arcs are congruent
Find Theorem
c
a
x
d
What theorem would you use to prove ax is congruent to dx?
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In the same circle, or in congruent circles, two chords are congruent if and only if they are equidistant from the center.
Find Theorems
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What theorem can solve this angle measure?
If a tangent and a secant, two tangents, or two secants intersect in the exterior of a circle, then the measure of the angle formed is one half the difference of the measure of the intercepted arcs
Definition
What is a chord?
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A segment whose endpoints are points on a circle.
Definition
What is the interior of a circle?
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All the points of the plane that are inside a circle.
Definition
What are inscribed
polygons?Go Back
A polygon whose vertices all lie on a circle.
Definition
What are tangent circles?
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Circles that intersect at one point.
Definitions
What is an intercepted arc?
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The arc that lies in the interior of an inscribed angle and has endpoints on the angle
Draw the locus of all the points in a plane that are on the midpoint of a radius of . C
ANSWER
C
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