Parallel Lines and Transversals
What are 2 lines that never cross each other
Parallel Lines
What does adjacent mean?
next to
square root of 25
5
2x = 20
x = 10
Right or Not?; 15, 30, 45
No
2 angles that add up to 180 degrees
Supplementary
What does exterior mean?
outside
square root of 320
17.9
5x -20 = 60
x = 16
Right or Not?; 12, 15, 21
No
2 angles with the same measure
Congruent
Exterior Angle Formula
Exterior Angle = Interior Angle + Interior Angle
What is across from the 90 degree angle in a Right Triangle?
Hypotenuse or C
10x + 4 = 2x + 36
x = 4
Right or Not?; 18, 24, 30
Yes
Congruent Formula
angle measure = angle measure
23x = 7x + 10x + 36
x = 6
Find a; b = 20, c = 36
a = 29.9
2x + 3x +10 = 180
x = 34
To find a diagonal distance on a coordinate plane, create a right triangle where the diagonal is what?
Hypotenuse or C
Supplementary Formula
angle measure + angle measure = 180
2x + 23 = 3x - 57 + x - 10
x = 45
Find c; a = 15, b = 20
c = 25
3x - 6 + 4x - 4 + x + 14 = 180
x = 22
Find c; a = 2, b = 7
c = 7.3