Name all pair of Corresponding Angles.
<1 and <5 <3 and <7 <2 and <6 <4 and <8
What are vertical angles?
Angles that are across from each other and share a vertex. (in an X)
Angles 1 and 2 are adjacent angles. They add up to...
180 degrees
What do you call <2 and <6?
corresponding angles
True or False: complementary means an angle equals 90 degrees.
FALSE!
Sum of angles equals 90 degrees
Name the angle that is same side interior to angle 4.
angle 5
What is the vertical angle of 8
angle 6
Describe where alternate interior angles are?
Angles that are across each other on the inside of parallel lines cut by transversal lines.
Find the points of the "Z"
True or false: Corresponding angles are always congruent.
TRUE
Look at your picture. Corresponding angles are the same color ...this means they are congruent.
True or False. Adjacent angles share a side only.
FALSE.
Adjacent angles share a side and a vertex.
If angle 1 is represented by 2x + 40 and angle 3 are represented by 3x. What is the measure of angle 1
120 degees
Alternate interior angles are congruent or supplementary?
congruent (same color)
What is the name of <4 and <6?
Alternate Interior Angles
True or False: If you have 2 pairs of congruent angles in two different size triangles, then they are congruent.
TRUE
Angle Anlge Similarity. Prove 2 pairs of angles are congruent (same) then the triangles are similar.
What is the corresponding angle of 7
angle 3
If angle 5 is 110 and the measure of angle 7 is represented by 2x + 10. Find x.
x = 50
Same Side Exterior angles are congruent or supplementary?
supplementary (different colors)
If 2 angles is a triangle add up to 125 degrees. How many degrees are in the third angle?
55 degrees
If angle 1 is represented by 7x and angle 3 is represented by 3x +40. Find the measure of angle 6.
110 degrees.
Explanation: 7x=3x+ 40
so x= 10. The anglea 1, 3,5, 7 are 70 degrees and angle 2,4,6,8 are 110 degrees
If angle 2 is represented by 5x and angle 4 is 2x + 60. Find the measure of angle 1
80 degrees
If angle one is 3x and angle 5 is 2x+50. What is the value of x?
x = 50
___=___
What do you call <1 and <8?
Same side exteriors angles
A pole that is 6 feet tall, casts a shadow on the ground that is 4 feet long. How tall is a different pole if their shadow if 6 feet long?
9 feet.
** draw a picture and set up a proportion**