Two angles are congruent. The measure of the first angles is 42 degrees, what is the measure of the second angle
42 degrees
If a pair of adjacent angles formed by intersecting line are linear pairs, what is their relationship?
Supplementary
If a transversal cuts two parallel lines, how many angles are formed?
8 Angles
What is the value of T?
T = 71
What is Exterior Angle Theorem?
What is the relationship between angles 3 and 6 ?
Alternate Interior Angles.
One way to prove that lines are parallel lines is through understanding that corresponding angles are ________
Congruent
What is the relationship between alternate interior angles?
They are congruent.
What is the name of the Theorem that states that all of the angles inside of a triangle add up to 180 degrees?
The Triangle Angle Sum Theorem.
What is the m∠ x
m∠x= 149 degrees.
If the measure of angle 4 is 112, what is the measure of angle 6?
68 degrees
What kind of angles add up to 180 degrees?
Supplementary Angles
If the measure of angle 1 = 4x-6 and the measure of angle 5 =126, what is the value of x?
x=33
Find the value of ∠ x
x = 70
Solve for y.
y= 10
What is the relationship between angles 5 and 8?
Vertical Angles.
If the measure of angle 2 is 30 degrees, what is the measure of angle 6?
30 degrees
If the measure of angle 6 = 75 and the measure of angle 7 = 3x, what is the value of x?
x=25
What is the value of ∠ a?
∠ a = 87
Find the measure of angle CBA.
Angle CBA = 68 degrees.
If the measure of angle 2 is 37 degrees, what is the measure of angle 7 AND what is the angle relationship?
Angle 7 = 37 degrees AND Alternate Exterior.
If the measure of angle 5=98°, then the measures of angles 3 AND 4 are:
Angle 3 = 82 degrees.
Angle 4 = 98 degrees.
If the measure of angle 4 = 5x+3 and the measure of angle 6 = 8x-5, then find the measure of angle 4.
First, x = 14.
So angle 4 = 73 degrees.
What is the triangle sum theorem?
A + B + C = 180
What is the measure of the exterior angle?
m ∠ DBC = 150 degrees.