Download presentation
Presentation is loading. Please wait.
Published byJohnathan Stanley Modified over 9 years ago
1
Adjacent, Vertical, Supplementary, Complementary and Alternate, Angles
2
Adjacent angles are “side by side” and share a common ray. 45º 15º
3
These are examples of adjacent angles. 55º 35º 50º130º 80º 45º 85º 20º
4
These angles are NOT adjacent. 45º55º 50º 100º 35º
5
When 2 lines intersect, they make vertical angles. 75º 105º
6
Vertical angles are opposite one another. 75º 105º
7
Vertical angles are opposite one another. 75º 105º
8
Vertical angles are congruent (equal). 30º150º 30º
9
Supplementary angles add up to 180º. 60º120º 40º 140º Adjacent and Supplementary Angles Supplementary Angles but not Adjacent
10
Complementary angles add up to 90º. 60º 30º 40º 50º Adjacent and Complementary Angles Complementary Angles but not Adjacent
11
Alternate Interior Angles 1.For any pair of parallel lines 1 and 2, that are both intersected by a third line, such as line 3 in the diagram below, angle A and angle D are called alternate interior angles. Alternate interior angles have the same degree measurement. Angle B and angle C are also alternate interior angles.
12
Alternate Exterior Angles For any pair of parallel lines 1 and 2, that are both intersected by a third line, such as line 3 in the diagram below, angle A and angle D are called alternate exterior angles. Alternate exterior angles have the same degree measurement. Angle B and angle C are also alternate exterior angles.
13
Practice Time!
14
Directions: Identify each pair of angles as vertical, supplementary, complementary, or none of the above.
15
#1 60º 120º
16
#1 60º 120º Supplementary Angles
17
#2 60º 30º
18
#2 60º 30º Complementary Angles
19
#3 75º
20
#3 75º Vertical Angles
21
#4 60º 40º
22
#4 60º 40º None of the above
23
#5 60º
24
#5 60º Vertical Angles
25
#6 45º135º
26
#6 45º135º Supplementary Angles
27
#7 65º 25º
28
#7 65º 25º Complementary Angles
29
#8 50º 90º
30
#8 50º 90º None of the above
31
Directions: Determine the missing angle.
32
#1 45º?º?º
33
#1 45º135º
34
#2 65º ?º?º
35
#2 65º 25º
36
#3 35º ?º?º
37
#3 35º
38
#4 50º ?º?º
39
#4 50º 130º
40
#5 140º ?º?º
41
#5 140º
42
#6 40º ?º?º
43
#6 40º 50º
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.