1. SEGMENT ADDITION This stuff is AWESOME!

2. Can you see a shark?What about now?

3. AB means the line segment with endpoints A and B. AB means the distance between A and B. A B AB = 14 cm

4. C D EG E is between C and D. G is not between C and D. For one point to be between two other points, the three points must be collinear.

5. If Q is between P and R, then PQ + QR = PR. What does this mean? Start with a picture: PR Q If point Q is between points P and R, then the distance between P and Q plus the distance between Q and R is equal to the distance between P and R.

6. If PQ + QR = PR, then Q is between P and R. What does this mean? If the measure of segment PQ plus the measure of segment QR is equal to the measure of segment PR, then point Q must be between points P and R. PR Q PR Q PR = 15 123 143 15

7. COLORED NOTE CARD Segment Addition Postulate#2 If Q is between P and R, then PQ + QR = PR. If PQ + QR = PR, then Q is between P and R. PR Q

8. N is between L and P. LN = 14 and PN = 12. Find LP. LP N Q is between R and T. RT = 18 and QR = 10. Find QT. RT Q 1412 18 10

9. Find MN if N is between M and P, MN = 3x + 2, NP = 18, and MP = 5x. MP N 3x + 218 5x 3x + 2 + 18 = 5x 3x + 20 = 5x -3x -3x 20 = 2x 2 2 10 = x MN = 3 (10 ) + 2 MN = 32