Right Angles
The measure (in degrees) of a right angle is?
What is 90 degrees?
Vertical angles are always ___________.
What is congruent?
True or False? Adjacent angles share a side?
TRUE
Complementary angles add up to be ______.
What is 90º?
Supplementary angles add up to be _________.
What is 180º?
What symbol indicates a right angle?
What is a little square?
If ∠X and ∠Y are vertical angles, and the measure of ∠X is 60º, what is the measure of ∠Y?
What is 60º?
Two adjacent angles that form a linear pair are also __________ angles.
What is supplementary?
Two complementary angles will form a _______ angle.
What is a 90° angle?
Supplementary angles also form a __________.
What is a linear pair or a straight line or a line segment?
This special shape has only one right angle
What is a right triangle?
If ∠G and ∠H are vertical angles, and the measure of ∠G is 120º, what is the measure of ∠H?
What is 120º?
If ∠T and ∠V are adjacent AND complementary angles, and the measure of ∠T is 40º, what is the measure of ∠V?
What is 50º?
If ∠T and ∠V are complementary angles, and the measure of ∠T is 40º, what is the measure of ∠V?
What is 50º?
If ∠T and ∠V are supplementary angles, and the measure of ∠T is 45º, what is the measure of ∠V?
What is 135º?
This shape has four right angles and only the opposite sides are congruent
What is a rectangle?
True or False: Vertical angles are formed by the intersection of two lines (the angles on opposite sides of the intersection).
What is true?
∠T and ∠ V are adjacent AND supplementary angles. The measure of ∠T is 60º, what is the measure of ∠V?
What is 120º?
If ∠A and ∠B are complementary angles, and the measure of ∠A is 35º, what is the measure of angle B?
What is 55º?
If ∠K and ∠L are supplementary angles, and the measure of ∠L is 105º, what is the measure of ∠K?
What is 75º?
This shape has four right angles and all sides are congruent
What is a square?
True or False: Vertical angles CANNOT form a linear pair.
What is false? They can form a linear pair. The measure of both angles would be 180º.
If ∠T and ∠V are adjacent AND supplementary angles, and the measure of ∠T = (x)º measure of ∠V = (2x)º Find the measure of angle V.
What is 120º ?
If angle C and angle D are complementary angles, and the measure of angle C = (x+5)º measure of angle D= (2x+4)º Find the measure of angle C.
What is 32º ? x+5+2x+4=90 3x=81 x=27 C= 27+5 --> 32
If ∠B and ∠C are supplementary angles, and the measure of ∠B = (3x+1)º measure of ∠C= (x+19)º Find the measure of ∠C.
What is 59º? 3x+1+x+19=180 4x=160 x=40 C=40+19 --> 59