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Classifying Triangles
Vertical and Adjacent Angles
Two-Step Equations
Complementary and Supplementary Angles
Angles of a Triangle
100
How would you classify a triangle with 1 obtuse angle and no congruent sides?
Obtuse Scalene triangle
100
If 2x+2 is a vertical angle to 130 degrees, what is the measure of x?
64
100
3x+2=23 What is the measure of x?
7
100
Two angles are complementary if the sum of their measures is _____?
90 degrees
100
The angle measures inside of a triangle should have a sum of how many degrees?
180 degrees
200
How would you classify a triangle with 3 acute angles and 2 equal sides? Draw an example.
Acute Isosceles triangle
200
If two angles are vertical, that means their measures are _____.
Congruent
200
-2y-7=3
y=-5
200
Two angles are supplementary is the sum of their measures is _____?
180 degrees
200
If a triangle has an angle of 119 and 43, what is the measure of the third angle?
18
300
If a triangle is isosceles, it has..... List two characteristics
2 congruent sides and 2 congruent angles
300
If two angles are vertical and one has a measure of 80 and the other has 2x+6, what is the measure of x?
37
300
-5x+8=-2 What is the value of x?
2
300
If two angles are complementary and one has a measure of 40 and the other has 2x, what is the value of x?
25
300
In triangle ABC, if angle A=25 and angle B=108, what is the measure of angle C?
47 degrees
400
A triangle that has 3 congruent sides and 3 acute angles is called what?
Acute equilateral
400
What is the vocabulary word for two angles that have the same measure?
Congruent
400
-4w-4=8 What is the value of w?
w=-3
400
If two angles are supplementary and one has a measure of 60 degrees and the other has 6x, what is the value of x?
20
400
If a triangle has one angle measure of 25 and the other 2 angles have a measure of x, what is the measure of x?
77.5
500
A triangle with 1 right angle and no congruent sides is called what?
Right Scalene triangle
500
If two angles are vertical and one has a measure of 105 degrees and the other has 12x-3, what is the measure of x?
9
500
27+8.5x=78 What is the value of x?
x=6
500
Angles E and F are complementary. If angle E is x-10 and angle F is x+2, find the measure of each angle.
Angle F=51 degrees and Angle E=39 degrees
500
If a triangle has 3 angles with a measure of x, what is the value of x? What is the name of this triangle?
x=60 and Acute Equilateral