Circles
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(pre-made sample)
Name _____________________________
Date ___________________
(Key 1 - Answer ID # 0916985)
1.  

Diameter , chord , and radius are drawn in circle O. If mB = 18, find mAOC.


2.  

The measure of a minor arc is defined to be the measure of its ______.


3.  

There is no rule for an angle formed by a secant and a chord. How do you find its measure?


4.  

Diameter is extended through B to C. Tangent is drawn. If m = 32, find mC.


5.  

In circle O, chords and intersect at E. m = 114, m = (11x - 70), and mAEC = (6x + 12). Find m.


6.  

An angle formed by two tangents must be less than 90 degrees.

True

False
7.  

Chords and are drawn to circle O. If mB = 53, find m.


8.  

In circle O, mAOB = 69. Find the measure of major .


9.  

If mx = 31, find the measure of .
10.  

Triangle ABC is inscribed in circle O. If m = 54, find mBAC.
11.  

What property of circles explains why they are round?


12.  

Tangents and are drawn to circle O. If the measure of minor is 66, find mB.


13.  

ABCD is an inscribed quadrilateral in a circle. If mABC = 104, find mADC.


14.  

In circle O, chords and intersect at E. If m = 59 and m = 114, find mCEB.




Circles
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High School Geometry
Math