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Formulas for Geometry Review Flashcards | StudBud
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Formulas for Geometry Review
Formulas for Geometry Review
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#geometry #vocab
Flashcards
47 cards
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Questions
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Answers
1
What type of angle is represented by the letter A?
Right angle
Straight angle
Obtuse angle
Acute angle
2
An endless flat surface
Line
Plane
Line segment
Point
3
Two lines that never cross/intersect
Perpendicular lines
Line segments
Parallel lines
Intersecting lines
4
sum of the interior angles of a polygon
180(n-2)
360/n
θ/360 2⫪r
θ/360 ⫪r2
5
COS
O/A
A/0
O/H
A/H
6
Area of a kite
1/2(b1+b2)h
1/2 b
1/2d1d2
1/2(b1+b2)
7
A pair of lines that cross and form square corners
Line segments
Perpendicular lines
Parallel lines
Intersecting lines
8
volume of a triangular prism
1/2 LW
1/2 bhh
1/3 bhh
1/3 Bh
9
Midsegment of a trapezoid
1/2(b1+b2)
1/2(b1+b2)h
1/2 b
1/2d1d2
10
how can you not prove triangles congruent?
SSA
AAA
ASA
SAS
11
Volume of a Cone
1/3⫪r2h
⫪r2
⫪r2
1/2⫪r2
12
A straight path of points that goes on and on in opposite directions. (has arrows on both ends)
Point
Line
Plane
Line segment
13
An angle that is open more than a 90 degrees
Acute angle
Obtuse angle
Straight angle
Right angle
14
Volume of a cylinder
2⫪r
⫪r2h
1/3⫪r2
4/3⫪r2
15
Area of a Rectangle
1/2BH
S2
LW
LB
16
Law of Sines
1/2ap
a/sinA = b/sinB = c/sinC
1/2bcSinA
a2=b2+c2-2bccosA
17
What type of angle is represented by the letter D?
Obtuse angle
Acute angle
Straight angle
Right angle
18
An angle that is open less than a 90 degrees
Straight angle
Right angle
Acute angle
Obtuse angle
19
area of a triangle
1/2bcSinA
a/sinA = b/sinB = c/sinC
a2=b2+c2-2bccosA
1/2ap
20
density formula
mass/volume
d=v/m
area/units
area/volume
21
Area of a Triangle
1/2LW
1/2BH
LW
1/3BH
22
A pair of lines that cross through the same point
Perpendicular lines
Parallel lines
Intersecting lines
Line segments
23
Area of a sector
θ/360 2⫪r
360/n
θ/360 ⫪r2
180(n-2)
24
Length of a sector
180(n-2)
360/n
θ/360 ⫪r2
θ/360 2⫪r
25
an exterior angle of a polygon
θ/360 2⫪r
θ/360 ⫪r2
360/n
180(n-2)
26
Midsegment of a triangle
1/2 b
1/2(b1+b2)h
1/2d1d2
1/2(b1+b2)
27
What is true about rays AB and CD?
They are obtuse
They are perpendicular
They are intersecting
They are parallel
28
Law of Cosines
1/2bcSinA
a2=b2+c2-2bccosA
1/2ap
a/sinA = b/sinB = c/sinC
29
Distance formula
a2+b2=c2
((x2+x1)/2 , (y2+y1)/2)
√[(x2-x1)2+(y2-y1)2]
C=2⫪r
30
Midpoint Formula
C=2⫪r
a2+b2=c2
√[(x2-x1)2+(y2-y1)2]
((x2+x1)/2 , (y2+y1)/2)
31
sin
O/A
A/H
O/H
A/0
32
A part of a line with one endpoint and continues on forever in the other direction.
Plane
Ray
Point
Line segment
33
An angle that is open 90 degrees and forms a square corner
Acute angle
Obtuse angle
Straight angle
Right angle
34
TAN
O/H
A/0
A/H
O/A
35
An angle that forms a straight line
Straight angle
Obtuse angle
Acute angle
Right angle
36
Area of a polygon
1/2ap
a2=b2+c2-2bccosA
1/2bcSinA
a/sinA = b/sinB = c/sinC
37
COT
A/H
A/0
O/H
O/A
38
An exact location in space.
Point
Line segment
Plane
Line
39
Area of a kite
1/2(b1+b2)
1/2 b
1/2d1d2
1/2(b1+b2)h
40
What is true about lines AB and DA?
They form a right angle
They form an obtuse angle
They are intersecting
They are parallel
41
Volume of a rectangular pyramid
1/2LWH
1/3 BHW
1/2BHH
1/3 LWH
42
Area of a trapezoid
1/2(b1+b2)h
⫪r2
1/3bh
1/2(b1-b2)
43
Volume of a sphere
⫪r3
4/3 ⫪r3
2/3 ⫪r3
1/3 ⫪r3
44
Pythagorean Theorm
√[(x2-x1)2+(y2-y1)2]
((x2+x1)/2 , (y2+y1)/2)
a2+b2=c2
C=2⫪r
45
A part of a line with two endpoints
Plane
Line
Point
Line segment
46
Area of a Circle
⫪r2
1/3⫪r2
⫪r3
2⫪r
47
Volume of a rectangular prism
LWH
LWB
LW
BHL
