Basic Geometry Vocab & Formulas
Similarity
Parallel and Perpendicular
Angle Pairs
Midpoint and Distance
100
A closed 2D figure with straight sides
Polygon
100
What does it mean when two shapes are similar?
Sides are proportional, angles are congruent
100
What is the slope of a line parallel to y=2x -5?
2
100
Name a pair of vertical angles
Lots of answers!!!!
100
Find the midpoint of (-3, -5) and (5, 3)
(1, -1)
200
A part of a line that is bound by endpoints
Segment
200
What are two of the three similarity Theorems
AA~, SSS~, SAS~
200
What is the slope of a line parallel to y = -12x + 1?
-12
200
Name a pair of corresponding angles
2&6, 3&7, 1&5, 4&8
200
Find the midpoint
(0.5, -0.5)
300
A pair of adjacent angles that form a straight angle
Linear pair
300
Corresponding angles in similar triangles are what?
congruent
300
What is the slope of a line perpendicular to y= 2x -5?
-1/2
300
Name a pair of alternate interior angles
3&5, 4&6
300
Find the distance between
(10, 2) and (4, -6)
10
400
The intersection of two planes is a _____
line
400
Are these two triangles similar? How do you know?
Yes AA~
400
Write the equation of a line that is parallel to the line y = 9x + 14 that passes through the point (1,2)
y=9x-7
400
Name a pair of alternate exterior angles
1&7, 2&8
400
Find the distance
sqrt65=8.06
500
The geometric figure joined by two rays with a common endpoint
What is an angle?
500
Are these two triangles similar? How do you know?
Yes; SAS~
500
Write the equation of the line that is perpendicular to y = 3/4x + 2 that passes through (6,1)
y=-4/3x-9
500
Name a pair of same side interior angles
3&6, 4&5
500
Marie starts walking from her house towards the playground. Instead of going directly to the playground, she goes to Dave's house first and then on the playground. On a coordinate map Marie's house is located at M(2,9) and the playground is located at P(10,4) .
If Dave's house is located at the midpoint of the straight line joining M and P, what distance does Marie walk from her house to Landon's house? (Assume that all distances covered are straight lines)
4.7 units