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Geometry EOC Formulas/Rules Review Flashcards | StudBud
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Geometry EOC Formulas/Rules Review
Geometry EOC Formulas/Rules Review
44 terms
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Geometry Formulas and More
Flashcards
44 cards
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Questions
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Answers
1
A 90 degree counterclockwise rotation
(y,-x)
(-y,-x)
(-y,x)
(y,x)
2
The midsegment of a triangle
is half the length of the third side
is parallel to the third side
is a midpoint
connects midpoints of two sides of a triangle
3
Converse
if and then
Switch if and then
switch and not if and then
not if and then
4
Cube
20 faces
6 faces
9 faces
10 faces
5
What does CPCTC stand for?
Congruent Parts of Congruent Triangles are Congruent
Congruent Parts Collinear Triangles are Collinear
Cows Pet Cats Too Cute
I don't know
6
A reflection across x-axis changes (x,y) to
(y,x)
(-x,-y)
(x,-y)
(-x,y)
7
The exterior angle theorem
exterior angle = interior angle
exterior angles are always congruent
exterior angle = sum of remote interior angles
exterior angles are always supplementary
8
Longest side of a triangle is opposite the...
obtuse angle
largest angle
smallest angle
acute angle
9
Corresponding Angles are...
Congruent
Supplementary
10
Which transformation creates a similar figure
Rotation
Dilation
Translation
Reflection
11
TetraHedron
6 faces
4 faces
20 faces
9 faces
12
Inscribed Angle =
Double the Arc
Major Arc
Half the Arc
Minor Arc
13
Which trig function (aka ratio) should be used...
What?!
Cosine
Sine
Tangent
14
Which of the following represents a translation?
$
(2x,3y)
(x,y)
(x+2,y-5)
15
Area of a Trapezoid
½bh
Add the bases ÷ 2 × height
½h(b1+b2)
bh
16
Isocahedron
10 faces
6 faces
4 faces
20 faces
17
Consecutive Interior angles are...
Congruent
Supplementary
18
Dodecahedron
20 faces
10 faces
12 faces
4 faces
19
Area of a Parallelogram
bh/2
bh
½bh
Don't know
20
Contrapositive
not if and then
if and then
switch and not if and then
switch if and then
21
A reflection across y - axis changes (x,y) to
(x,-y)
(-x,y)
(y,-x)
(-x,-y)
22
inverse
if and then
switch and not if and then
switch if and then
not if and then
23
Same Side Interior angles are...
Supplementary
Congruent
24
Pythagorean Theorem
a + b = c
a + b < c
a2+b2 = c 2
(a + b) 2= c
25
The perpendicular bisectors intersect at the
incenter
centroid
circumcenter
orthocenter
26
Which Trig function (aka ratio) should be used to find missing side?
Don't know
Sine
Tangent
Cosine
27
A 180 degree rotation changes (x,y) to
(x,-y)
(y,x)
(-x,-y)
(-x,y)
28
The third side of any triangle must be..
different than the sum of the other two sides
greater than the sum of the other two sides
equal to the sum of the other two sides
less then the sum of the other two sides
29
Which inverse trig function should be used to find missing angle?
Don't know
Cos-1
Sin<span style="font-size: 13.3333330154419px;">-1</span>
Tan-1
30
A dilation is an isometry. True or False?
True
False
31
An Isometry keeps the figure congruent: True of False?
False
True
32
Which Trig function (aka ratio should be used) to find x
Tangent
don't know
Sine
Cosine
33
The medians intersect at the
centroid
incenter
circumcenter
orthocenter
34
Equation of Circle with center at origin and radius 3
(x-0)2+(y-0)2=32
x2+y2=32
x2-y2=3
x2+y2=9
35
Which transformation keeps figures congruent
Reflection
Translation
Rotation
Dilation
36
Arc =
Central Angle
⫪
Any angle
Double the Inscribed Angle
37
Definition of Circle
set of points equidistant from a point
a round, curved drawing
a line segment that curves
I don't know
38
A 90 degree clockwise rotation changes (x,y) to
(y,-x)
(-y,x)
(-y,-x)
(y,x)
39
Alternate Exterior angles are...
Supplementary
Congruent
40
The altitudes intersect at the
Centroid
incenter
orthocenter
circumcenter
41
Which of the following represents a dilation?
(x,y)
(5x,5y)
(x+5,y-6)
@
42
Which Trig function (ratio) should be used...
Tangent
Don't Know
Cosine
Sine
43
Alternate Interior angles are...
Congruent
Supplementary
44
The angle bisectors intersect at the...
Incenter
Centroid
Orthocenter
Circumcenter
