Vocabulary
Two lines that never intersect.
Parallel Lines
This is the term for a 90-degree angle
Right angle
A triangle that has all sides the same length
Equilateral Triangle
opposite sides are parallel
Parallelogram
A shape that has 8 sides is called
An Octagon
Term used in Geometry for identical.
(exactly the same)
Congruent
When two angles add up to 180 degrees.
Supplementary angles
A triangle with two sides the same length
isosceles triangle
Each angle measures 90 degrees
(sides are not all the same length)
Rectangle
What is the Pythagorean Theorem used for?
To find missing sides of a right triangle.
When two lines intersect at a 90-degree angle.
Perpendicular
When two angles add up to 90 degrees.
Complementary angles
Interior angles of a triangle always add up to _____.
180 degrees
Side lengths are all equal, but the angle measures are not equal
Rhombus
A boat has a sail with one pair of perpendicular lines, and two sides the same length. What kind of triangle is it?
Right Isosceles
What do you call the rise over run?
Slope
Angles that lie opposite to each other when two lines intersect.
Vertical Angles
Triangle with no side lengths the same.
Scalene triangle
One pair of opposite sides are parallel, and the legs are congruent
Isosceles Trapezoid
Two parallel lines are cut by a transversal, the Same Side Interior Angles are what?
Supplementary
A line that splits an angle into two equal angles.
Angle Bisector
Two parallel lines are cut by a transversal, the Alternate Exterior Angles are what?
Congruent
A right triangle has an interior angle that measure 37 degrees. What does the missing interior angle measure?
53 degrees
If one angle measure of a parallelogram is 51 degrees what is the measure of the other three angles.
39, 51, 39
the combination of a conditional, p → q, and its converse, q → p
Biconditional Statement