Angles Flashcards
How many degrees are there in a quadrilateral?
360 degrees
How many degrees are there in a straight line?
180 degrees
Complementry angles add up to…..
90 degrees Hint: the C in complementry can be turned into a 9 ( as in 90 degrees)
Supplementary angles add up to ……..
180 degrees Hint: the S in supplementary can be turned into an 8 (as in 180 degrees)
Angles that are 1. Next to each other 2. Have the same vertex 3. Have a common arm Are called….
Adjacent angles
How many degrees in a reflex angle
Between 180 to 360
What are the 3 steps to measure the size of an angle with a protractor?
- Place the base line of the protractor on the lower arm of the angle 2. Have the centre of the protractor on the vertex of the angle. 3. Find 0” on the lower arm and use the scale to measure the angle
Angles around a point form a …..
Revolution and add up to 360 degrees
Vertically opposite angles are
Equal.
How many degrees are there in a triangle?
180 degrees