Terms
A set of points that is part of a line. It has one endpoint and extends in one direction with no end.
Ray
An angle whose measure = 90°
Right angle
Complementary angles add up to how many degrees?
90°
Solve angle on board.
180°
List the two pairs of vertical angles drawn on the board.
Z,X and Y,W
An _____ is made up of two rays.
Angle
An angle whose measure is greater than 0° and less than 90° .
Acute angle
Supplementary angles add up to how many degrees?
180°
Solve angle on board.
90°
Describe a vertical angle.
The angles opposite each other when two lines cross.
Tool used to measure angles.
Protractor
An angle whose measure is greater than 90° and less than 180° .
A straight angle is an angle whose measure equals ___° .
180°
Solve for angle B
65°
List the pairs of vertical angles drawn on the board.
Bacon, Eggs
Coffee, French Toast
A common endpoint for both sides of an angle.
Vertex
Two angles whose measures add to 90° are called _______.
Complementary angles
A protractor has degree markings from ___° to ___° .
0° to 180°
Solve for angle A.
77°
Find the vertical angle of angle C. How many degrees is it?
60°
To meet at a point. To cross or overlap each other.
Intersect
Two angles whose measures add to 180° are called _______.
Supplementary angles
How many degrees in a circle?
360°
23°
Find the vertical angle of B. How many degrees is it?
90°