MAC 1114 Trigonometry
Section 1.1: Angles, Degrees, and Special Triangles
Angles
Label the following angle. 5&6) List the angles as positive or negative
1) Vertex
2) Initial Side
3) Terminal Side
4) Rotation
7) One complete rotation of a ray is _________ degrees.
8) Angles that measure 90 degrees are called ___________________
9) Straight angles measure __________degrees.
10) Angles that measure between 0 and 90 degrees are called ____________
11) Angles that measure between 90 and 180 degrees are called ______________
12) If two angles have a sum of 90 degrees they are called _______________
13) If two angles have a sum of 180 degrees they are called __________________
Triangles
14) A triangle with three equal sides is called _________________
15) A triangle with two equal sides is called __________________
16) A triangle with no two sides equal is called ________________
17) An acute triangle has ______________________________________________
18) An Obtuse triangle has _____________________________________________
19) A right triangle has ________________________________________________
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