Geo 1.6 notes
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There are 4 main types of angles: 1) Acute angles are less than 90 degrees 2) Right angles are exactly 90 degrees 3) Obtuse angles are greater than 90 degrees but less than 180 degrees 4) Straight angles are exactly 180 degrees There are also 4 main angle pairs: 1) Adjacent angles 2) Vertical angles 3) Corresponding angles 4) Interior angles
Geo 1.6 notes
- 2. Naming and measuring angles: A B C 80 90 100 70 110 60 120 100 90 80 50 110 70 130 120 60 47° 40 130 50 140 140 0° 40 30 150 150 30 20 160 160 20 10 170 170 10 0 180 0 180 2
- 5. Angle Pairs 5
- 6. Ex. 1﴿ 6