Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
A
High school geometry: surface area of a triangular prism
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2
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1K
Audrey7
A
M
Subsets
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2
Views
1K
mmm4444bot
mmm4444bot
H
Another Focus of an Ellipse
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5
Views
2K
mmm4444bot
mmm4444bot
M
Symbolic Arguments
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1
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2K
pka
pka
M
Truth tables for negation, conjunction, and disjunction
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1
Views
2K
stapel
stapel
A
Need Final Exam help
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2
Views
1K
stapel
stapel
A
Split - Final exam
Replies
2
Views
1K
Deleted member 4993
D
R
exact value of cos (-75 degrees)
Replies
4
Views
9K
pka
pka
chandra21
pair of straight line
Replies
5
Views
2K
HallsofIvy
H
H
Focus of an Ellipse
Replies
8
Views
5K
HallsofIvy
H
chandra21
conic
Replies
4
Views
2K
HallsofIvy
H
L
[UPDATE] Please review my progress, thoughts so far on 4-square problem
Replies
5
Views
2K
LilWiz
L
chandra21
vector question
Replies
9
Views
2K
pka
pka
A
Direct distance between two cities?
Replies
1
Views
1K
stapel
stapel
S
Labelling the Outer Points of a Pentagram
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2
Views
2K
mmm4444bot
mmm4444bot
G
(Couldn't find correct category, I'm sorry!) How would I finish this problem?
Replies
0
Views
1K
Griseldah
G
I
I stumped, some kind of trapezoid inside a circle
Replies
6
Views
5K
wjm11
W
J
Prove LHS = RHS
Replies
5
Views
4K
Deleted member 4993
D
M
Cosine and Sine Function (Trigonometric function) Help?
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1
Views
2K
Deleted member 4993
D
J
Solve without using a calculator
Replies
2
Views
2K
Jasonrich
J
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