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Angles
by Shelby Say
# Angles

## Adjacent Angles

### share same ray

## Semicircle

### 180 degrees

### supplementary

## Right Angle

### 2 rays are
perpendicular

### complementary

### 90 degrees

## 2 line segments

### all angles are supplementary and adjacent

### only 2 adjacent/ supplementary angles equal
180 degrees

### vertical angles

## Measuring

### one side on 0 degrees line

### other line determines angle measurement

### vertex is at the center of the protractor

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means "next to"

supplementary, New node

sum of 2 angles equal 180 degrees

when adjacent to each other, they form a straight line

sum of 2 angles equal 90 degrees

all angles should equal 360 degrees

known as Straight Angle

to find other angle measurements, subtract: 180-given angle

always equal