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BASIC VOCABULARY
Classifying Angles
Distance
Bisectors
Midpoint
100
It has no dimension.
What is a point?
100
A tool used to measure angles.
What is protractor?
100

What is the distance formula?

d=√(x₂-x₁)²+(y₂-y₁)²

100
Point that divides a segment in half?
What is midpoint?
100

What is the midpoint formula?

M(((x₁+x₂)/2),((y₁+y₂)/2)))

200
Extends in one dimension.
What is a line?
200
An angle that is less than 90 degrees.
What is acute angle?
200

What is the distance between (8,11) and (8,4)?

7

200
Divides a segment into two congruent segments?
What is bisects?
200

Given the points A and B where A is at coordinates ( 2,-5 ) and B is at coordinates ( -3,-7 ) on the line segment AB, find the midpoint of AB.

(-.5,-6)

300
Extends in two dimension.
What is a plane?
300
An angle equal to 90 degrees.
What is a right angle?
300

Given the points A and B where A is at coordinates ( 2, -5 ) and B is at coordinates ( -3, -7 ) on the line segment AB, find the length of AB.

√29 or 5.39

300
Segment, ray or line that intersects a segment at it's midpoint.
What is segment bisector?
300

Find the midpoint of the line segment AB where point A is at ( 0, 2 ) and point B is at ( -1, - 4 ).

(-.5,-1)

400
Points that lie on the same line.
What is collinear points?
400
An angle greater than 90 degrees.
What is an obtuse angle?
400

To get from his home to his girlfriend's home, Jimmy must drive around the library. If he drives 3 miles north, then 4 miles east, and finally 5 miles south, what is the straight-line distance between Jimmy's home and his girlfriend's home?

√20 or 4.47

400
Formula used to find the midpoint.
What is midpoint formula?
400

Tommy is at Disneyland taking pictures with the characters. If SpongeBob is at (-8,3) and Mickey Mouse is at (2,-5), and Tommy is sitting between them, where is Tommy located at?

(-3,-1)

500
Points that lie on the same plane?
What is coplanar points?
500
An angle equal to 180 degrees.
What is a straight angle?
500

A skydiver lands 150 yards west and 30 yards north of a target. A second skydiver lands 45 yards east and 150 yards south of the same target. How far from each other did the two skydivers land?

√70425 or 265.38

500
Ray that divides an angle into two congruent angles.
What is angle bisector?
500

Lily is deciding between dessert or Teaway. Teaway is at (5,6) and the dessert house is at (9,-3). If Lily is standing in between them, where is she?

(7,1.5)