1-4 Angles

1
1-4 Angles
2
Angle Figure made when 2 rays have the same
endpoint

• EF and ED are the sides
• E is the vertex
• Called
• RULE Vertex MUST be in the
• Center when naming an angle

D
1
E
F
3
TOO

• Name as many different angles as you can

P
Q
S
R
4
Types of Angles

• Acute Angle Measures between 0º and 90º
• a cute little
• Right Angle Measures 90º
• Look for the box in corner
• Obtuse Angle Measures between 90º and 180º
• Straight Angle Measures 180º

5

• If B is in the interior of angle AOC, then
• AND

A
B
O
C
6
Bisector of an Angle

• A ray that cuts an angle in half
• Similar to a midpoint

A
B
O
C
7

• LA bisects angle GLH, therefore . . .
• Solve for x if

H
A
G
L