stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Geometry Facts Flashcards | StudBud
Explore
/
Geometry Facts
Geometry Facts
28 terms
·
StudBud Administration
·
7 plays
Contains facts and formulas from ALL geometry (VA SOL). SOL review.
Flashcards
28 cards
F
Practice quiz
P
Host live
L
Questions
28
Answers
1
What is the slope formula?
y1 + y2 / x1 + x2
y2 - y1 / x2 - x1
x2 - y2 / x1 - y1
x2 - x1 / y2 - y1
2
If the point (x, y) is rotated 90
o
counter-clockwise, the new coordinates would be...
(-y, -x)
(y, -x)
(-y, x)
(-x, y)
3
Perpendicular lines have ______ slopes
opposite reciprocal
negative
No
same
4
The triangle inequality says that any two sides in a triangle must be ____ than the third side.
less than
greater than or equal to
less than or equal to
greater than
5
If the scale factor of two similar solids is a:b, then the ratio of the volumes is...
a3 : b3
a : b
1 : 3
a2 : b2
6
If p-> q is the original conditional, what is the inverse?
~q -> ~p
q -> p
p -> q
~p-> ~q
7
Which of the following is NOT a property of parallelograms?
Diagonals bisect each other
Diagonals are congruent
opposite sides are congruent
opposite angles are congruent
8
In a triangle, the largest side is always...
opposite the largest angle
opposite the smallest angle
next to the largest angle
labeled C
9
If a
2
+ b
2
> c
2
, then the triangle is...
obtuse
acute
right
fancy
10
In a 45-45-90 triangle, the hypotenuse is ___ times the leg.
2
√2
3
√3
11
A parallelogram with perpendicular diagonals MUST BE a...
rectangle
Rhombus
Kite
square
12
If the point (x, y) is reflected across the x-axis, the new coordinates would be...
(-x, -y)
(x, -y)
(-x, y)
(y, x)
13
For parallel lines cut by a transversal, which of the following are NOT congruent?
Vertical Angles
Corresponding Angles
Alternate Interior Angles
Consecutive Interior Angles
14
What are the triangle congruence postulates?
SSS, SAS, AAS, SSA, HL
SSS, SAS, ASA, AAS
SSS, SAS, ASA, AAS, HL
SSS, SAS, ASA, AAS, SSA, HL
15
In a 30-60-90 triangle, the ratio of the short leg: long leg: hypotenuse is...
1 : 2 : √3
1: 1: √2
1 : 3 : √3
1 : √3 : 2
16
What is the midpoint formula?
(x2 - x1)/2 , (y2 - y1)/2
(x2 +x1)/2 , (y2 +y1)/2
(y2 - y1)/(x2 - x1)
(x2 +x1)/2 + (y2 +y1)/2
17
Which pair of angles is alternate exterior?
2 and 8
3 and 6
2 and 7
1 and 5
18
Which equation can be used to solve for a segment length in the circle pictured?
ac = bd
ab = cd
a + d = b + c
ad = bc
19
sin x =
opp/adj
opp/hyp
adj/opp
adj/hyp
20
Use inverse trigonometry (sin
-1
) when looking to find a...
ratio
area
side
angle
21
Which is the law of syllogism?
If p->q, then ~q -> ~p
If p-> q and q -> r, then p -> r
If p -> q and p, then q
If p -> q and ~q, then ~p
22
The sum of the exterior angles of a polygon is...
360
(n-2)180
(n-2)360
180
23
To find the sum of the interior angles of a polygon, use...
360
(n-2)180
(n-2)180/n
n180
24
What are the triangle similarity postulates
SAS, SAS, ASA, AAS
SSS, SAS, ASA, AAS, HL, AA
SSS, SAS, ASA, AAS, HL
SAS, SAS, AA
25
Which is the correct distance formula?
√(x2 - x1)2 + (y2 - y1)2
√(x2 +x1)2 - (y2 +y1)2
√(x1 +x2)2 + (y1 +y2)2
√(x2 +x1)2 + (y2 +y1)2
26
What does the symbol ^ mean?
Not
Or
And
Therefore
27
What is the contrapositive of p -> q?
q -> p
~q -> ~p
~p -> ~q
p -> q
28
A parallelogram has ___ lines of symmetry.
2
0
8
4
