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Geometric Terms
Formulas
Proofs
Constructions
Transformation
100
Define a ray
Starts at a given points and goes off in ONE direction
100
What is the point slope formula?
y − y1 = m(x − x1)
100
Name three ways to prove two triangles congruent.
SSS SAS ASA AAS
100
Construct a perpendicular bisector
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100
Define two types of dilations
enlarge or reduce
200
This figure extends infinitely in all directions along a flat surface.
A line
200
What is midpoint formula?
(x1 + x2)/2 , (y1 + y2)/2
200
What is the reflexive property?
line or angle is equal to itself
200
Construct a regular hexagon inscribed in a circle
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200
What type of transformation occurs when cars are moving on the highway?
translation
300
A triangle with all its interior angles measuring less than 90 degrees.
Acute triangle
300
What is Pythagorean Theorem?
a^2 + b^2 = c^2
300
What is CPCTC and when is it used?
Corresponding parts of congruent triangles are congruent
300
Name two flags that have reflectional symmetry
canadian, british, bangladesh, etc.
300
What transformations occurs between the earth and moon?
rotation
400
Define coplanar points
Points that lie in the same plane
400
What is equation of a line?
y = mx + b?
400
What two things do a perpendicular bisector create?
Right angles and equal segment halves.
400
What is one job that would require geometric constructions?
architect, engineer, aerospace scientists
400
What transformation occurs between the earth and the moon?
rotation
500
Define non-collinear points
Points that do NOT line on the same line
500
What is distance formula?
radical [ (x2-x1)^2 + (y2-y1)^2) ]
500
Define supplementary and complementary angles
angles that add up to 180 and 90
500
Construct an equilateral triangle
triangle
500
What is the rotational symmetry of an oval?
180 degrees