lesson 62 : anglesmichaelpgallagher.weebly.com/.../8/0/0/58009965/amps_lesson_6-2_… · amps...
Post on 12-Oct-2020
2 Views
Preview:
TRANSCRIPT
AMPs Lesson 62 Angles.notebook
1
February 25, 2020
Lesson 62 : Angles
• Acute Angles Measure less than 90 degrees
• Right Angles Measures exactly 90 degrees
• Obtuse Angles Measures more than 90 degrees
Symbol = 90°
AMPs Lesson 62 Angles.notebook
2
February 25, 2020
• Straight Angles Measure exactly 180 degrees
• Reflex Angles Measure greater than 180 degrees but less than 360 degrees. ﴾The outside of an acute, right or obtuse angle.
AMPs Lesson 62 Angles.notebook
3
February 25, 2020
An Acute Angle is _________.
A Right Angle is ___________.
An Obtuse Angle is ________.
A Straight Angle is ________.
A Reflex Angle is __________.
M
NOP
Q
AMPs Lesson 62 Angles.notebook
4
February 25, 2020
Complementary Angles: The sum of 2 angles equals 90
Supplementary Angles: The sum of 2 angles equals 180
AMPs Lesson 62 Angles.notebook
5
February 25, 2020
Adjacent Angles: Angles that share a common vertex and side. Supplementary and complementary angles are two special types of adjacent angles.
AMPs Lesson 62 Angles.notebook
6
February 25, 2020
Vertical Angles Angles that are "across" from
each other and share the same vertex. Vertical
angles are congruent (same measure).
A B
D E
C
∠ACB and ∠DCE are vertical angles and are congruent
AMPs Lesson 62 Angles.notebook
7
February 25, 2020
Linear Pairs: Linear pairs are adjacent angles formed by intersecting lines. Linear pairs are supplementary (sum to 180°).
AMPs Lesson 62 Angles.notebook
8
February 25, 2020
Practice...
1. 2. 3.
50° 70°a cb
40°
4. 5.
3x96°3x + 20
2x
Tip: Think about what type of angles are formed
AMPs Lesson 62 Angles.notebook
9
February 25, 2020
Find the measure of each missing angle:
139°
a
d
c
b
41°e
6.
∠a. ________∠e. ________∠d. ________
∠c. ________∠b. ________
top related