Lines and Angles
What do we call an angle that is 90 degrees?
right angle
Which part of a statement is considered the hypothesis?
the part after the word "if"
What is the name of the angle pair that has angles on opposite sides of the transversal, but on the inside of the parallel lines?
alternate interior angles
What do we call a triangle that has all sides the same length?
equilateral
Which parallelogram has all sides congruent and all right angles?
square
What do we call lines that intersect to form a right angle?
perpendicular lines
Which part of a statement is considered the conclusion?
the part after the word "then"
What is the name of the angle pair that has angles on opposite sides of the transversal, but on the outside of the parallel lines?
alternate exterior angles
What do we call a triangle with two sides the same length?
isosceles
Which parallelogram has all sides congruent, but not all right angles?
rhombus
What do we call the part of a line that has one endpoint and continues in one direction forever?
ray
What does it mean to bisect?
to cut in half creating 2 congruent parts
What is the name of the angle pair that has angles on same side of the transversal, but on the inside of the parallel lines?
same-side interior angles
What do the angles of a triangle will always add up to?
180 degrees
Which quadrilateral has only one pair of parallel sides?
trapezoid
What do we call angles that are across from each other on an X?
vertical angles
What do you do to a statement to get the converse?
you switch the hypothesis and conclusion
(or switch the if/then parts)
What is the name of the angle pair that has angles in the same position on their intersections?
corresponding angles
What is the name of the side across from the 90 degree angle in a right triangle?
hypotenuse
What is true about the adjacent angles of a parallelogram?
they are supplementary, they add up to 180 degrees
What do we call something that divides a segment into two congruent segments?
bisector or midpoint
What is true about 2 angles that are supplementary to the same angle?
they are congruent to each other
Which 3 angle pairs are congruent and which angle pair is supplementary?
Congruent: Alt. int, alt. ext, corresponding
Supplementary: Same-side int.
What are the 5 ways we use to prove triangles congruent? (Just the letters)
SSS, SAS, ASA, AAS, and HL
How would you find the length of the midsegment of a trapezoid?
add up the two bases and divide that by 2