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