Note Taking Guide:
Unit: Circles pt 1
Lesson 3: More Arcs and Angles
Part 1: Let’s practice
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USING THE FIGURE ABOVE AND THE GIVEN INFORMATION SOLVE THE FOLLOWING PROBLEMS:
1. Name this circle:___________________________________
2. Name a radius:_____________________________________
3. Name a central angle that intercepts AC :___________________
4. If m  ERD = 53 ,m  ARB = 240 , and m DC = 870 , find the measures of the angles and the
arcs.
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m  TRA = ____________
m  BRC = ____________
m  DRC = _________________
m  TRE =__________________
m ED =________________
m TED =_____________________
m TB =_________________
m BD =_________________________
m TE =_________________
m AB =_________________________
5. Name a major arc:__________________________
Note Taking Guide:
Unit: Circles pt 1
Lesson 3: More Arcs and Angles
Part 2: With some Algebra!
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6. If m  ERD =3x - 15,m  ARB = x + 8,
angles and the arcs.
m  TRA = ____________
m  BRC = ____________
mBC = 4x + 7 and m DC =2x - 1, find the measures of the
m  DRC = _________________
m  TRE =__________________
m ED =________________
m TED =_____________________
m TB =_________________
m BD =_________________________
m TE =_________________
m AB =_________________________
8. Name 2 congruent arcs: ____________________ and _____________________
9. If AR = 4x + 17 and RD = 6x – 20, find x and the diameter of the circle.
X = _______________ Diameter = _____________________
Do you know? …. 10. What is the difference between a chord and a secant?