1. Whole Sheet
Chord-Chord
Secant-Tangent
Secant-Secant
Tangent-Tangent

4. Segment Lengths
Wheel of Formulas

5. Time to make a
Wheel of Formulas

6. Secant-Tangent Chord-Chord Tangent-Tangent Secant-Secant Whole Sheet
Formula goes here!!!
Secant-Secant
Tangent-Tangent

7. Cut out!
Cut out
this part.
Segment Lengths
In Circles.

8. The chords look like a multiply sign!
Chord-Chord
Intersect INSIDE the circle. A D
A • B = C • D B C
The chords look like a multiply sign!

9. Ex. 1 Find x. W X Z Y
x + 5 2x 6 V 7

10. Ex. 2 Find length of chord XY. Verify that it equals chord WZ.7 6

11. OUTSIDE SEGMENT • WHOLE SEGMENT = OUTSIDE SEGMENT • WHOLE SEGMENT
Secant-Secant
Two Secants intersect OUTSIDE the circle E A B C D
OUTSIDE SEGMENT • WHOLE SEGMENT = OUTSIDE SEGMENT • WHOLE SEGMENT
EA • EB = EC • ED

12. Ex 1: Solve for x E A B C D 7 13 4 x

13. Ex 1: Solve for x E A B D 8 5 6 x

14. Ex: 3 Solve for x. E A B C D 2 10 5 x

15. Tangent-Tangent E B T
outside = outside

16. A C B

17. T S

18. Secant-Tangent Tangent2 = outside • whole C B E A
A secant and a tangent intersect outside the circle. E A B C
Tangent2 = outside • whole

19. E A B C 24 12

20. E A B C 15 5 x