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# Year 7 Angles

### Definitions and facts from the NSW Year 7 Angles Topic

What are angles measured in? degrees
An instrument for measuring the size of an angle protractor
The corner or point of an angle. vertex
What type of angle has a measure between 0° and 90°? acute
What type of angle has a measure of 90°? right
What type of angle has a measure between 90° and 180°? obtuse
What type of angle has a measure of 180°? straight
What type of angle has a measure between 180° and 360°? reflex
What type of angle has a measure of 360°? revolution
When an angle is named using 3 letters the ________ letter must be the middle letter vertex
Two angles that add up to 90° complementary angles
Two angles that add up to 180 supplementary angles
Vertically opposite angles are _________ in size equal
What do angles at a point add up to? 360°
Lines that point is the same direction and do not intersect parallel lines
Lines that intersect at right angles perpendicular lines
A line that cuts across two or more other lines transversal
Created by: wdobson

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