Vocabulary
Two or more points that are on the same line are said to be...
Collinear
Right angle
The sum of the measure of the angles in a quadrilateral is _______ degrees
360
x + 8 and 2x - 12 are vertical angles. Solve for x.
20
True or False: If a given statement is true, then the converse statements are always true.
False
Two ______ make up an angle. They each contain one endpoint and one arrow.
rays
Two angles whose sum is 90 degrees are what type of angles
Complementary
Equilateral triangles are also ________ triangles.
Equiangular
x + 8 and 2x - 12 are vertical angles. Find the measurement of each angle.
28 degrees
Tell whether the argument below is a valid or invalid deduction. All Brazilians are South Americans. If Luis is not South American, then he is not Brazilian.
Valid
A line that intersects two or more lines in different points. Usually associated with parallel lines
Transversal
Two angles across from each other, formed by intersecting lines are called...
Vertical Angles
The measure of an exterior angle of a triangle is equal to the sum of the measures of the _________ angles.
Two remote (opposite) interior
3x - 5 and x + 13 are the measures of opposite sides of a parallelogram. Solve for the side lengths.
22 units
Name 3 types of triangles based on side length
Equilateral, Isosceles, Scalene
A polygon with ten sides
Decagon
Same side interior angles are ________.
Supplementary
Describe the Reflexive Property
Anything equals itself, a = a
A triangle has a base of 24 units and an altitude of 5 units. What is the area of the triangle?
50 u2
What are the 5 ways to prove triangles are congruent? Hint: 4 have 3 letters and 1 has 2 letters
SSS, SAS, ASA, AAS, HL
Another term for adjacent angles
Consecutive Angles
Name at least 3 types of angles that are congruent
Vertical, alternate interior, alternate exterior, corresponding, angles of regular/similar/congruent figures
A ________ is a quadrilateral with exactly 1 pair of parallel sides
Trapezoid
A cylinder has a base radius of 4 and an altitude of 8. Find the volume in terms of pi.
128 pi u3
What does CPCTC stand for?
Corresponding Parts of Congruent Triangles are Congruent