What kind of angle is less than 90 degrees? Right, Acute, Obtuse or Straight?
acute
Sum of complementary angles
90 Degrees
Angles A and B are Complementary angles. Angle A measures 28 degrees. Angle B measures ___.
62 degrees
A line that crosses two or more other lines in a plane?
traversal line
A triangle has angles 80 degrees, 43 degrees and x. What is x?
x = 57
What is the name of an angle that measures 180 degrees?
straight
Sum of supplementary angles
180 Degrees
What is the measurement of angle x?
53 degrees?
The type of lines that NEVER intersect
Parallel Lines
x = 106
Write give an example of an acute angle
You are correct if you wrote a number between 91-179
Angles that are NOT next to each other
Non Adjacent Angles
What is the measurement angle ABD?
120 degrees
What rule is this? (I will draw)
Corresponding
In a triangle: Angle A is 50, Angle B is 65, Angle C is 5X. What is the value of X
13
If an angle measures 34 degrees, what type of angle is it?
acute
Angles that are next to each other
Adjacent Angles
Write the equation to solve for x
28o + xo + 73o = 180o
xo = 79o
What rule is this?
Alternate angles
In a triangle: Angle A is 34, Angle B is 110, and Angle C is 2X. What is the value of X?
18
Complementary angles add up to _____
90 Degrees
Vertically opposite angles are always __________
Congruent (the same)
You have 3 angles across a straight line, one is a right angle, the second and third angles are equal. What is the value of the two unknown angles?
90+2x=180
180-90=2x
90=2x
45=x
What rule is this?
co-interior
a quadrilateral has angles 90 degrees, 87 degrees, 43 degrees and 2x. What is the value of x.
x = 70