Lesson 1 Skills Practice

<MNO or <5 or < ONM
Obtuse

Neither

Obtuse

x = 23
What is the definition of an obtuse angle?
Greater than 90 degrees and less than 180 degrees.

Vertical

x = 17


x = 112
How many degrees do a pair of complementary angles equal?
90 degrees

Neither

x = 104

Adjacent and Supplementary (Linear Pair)

x = 29
Draw a pair of supplementary angles. What will they equal?

<WYV = 64

x = 10

b = 36

x = 19
What is true about the degrees of all vertical angle pairs?
They are congruent (equal/same)

<VYX = 104

<C = 135

b = 155

x = 21
When naming an angle, what letter is always in the center? (vocabulary word answer)
The vertex.