1. On a coordinate grid, the location of a lighthouse is at L,
Warm Up – 9/10/13
On a coordinate grid, the location of a lighthouse is at L,
and the location of a buoy is at B. At noon, the buoy is the midpoint of the segment connecting a ship and the lighthouse on the grid. What are the coordinates that represent the ship’s position?

2. Angles on Parallel Lines

3. Corresponding (F) angles
Corresponding Angles are EQUAL x x x x x x x x

4. Interior Angles add up to 180
Co Interior (C) angles
Interior Angles add up to 180 a a
a + b = 180
a + b =180 b b

5. Alternate Angles are EQUAL
Alternate (Z) angles
Alternate Angles are EQUAL x x x x

6. g h e f b a c d Look at angle a, write down and angle which is:
Corresponding with a
Alternate to a
Co interior with a g h f e a b c d

7. Find a, b and c giving reasons for each answer.
27° b c
95 ° a
120°
75° b c a
45°
110 °

8. Find a, b and c giving reasons for each answer.
55 °
110 ° c c b c a a a
120 °
115 °
25 ° b c c a b a b a c
10°

9. Homework: pg. 32 #14-32 Even