Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
Inertia_Squared
Finding the angle of a pendulum's period with unusual units:
Replies
14
Views
1K
Inertia_Squared
Inertia_Squared
amathproblemthatneedsolve
Setting the distance between two points
Replies
6
Views
999
Steven G
Steven G
A
how to set this up?
2
Replies
26
Views
3K
allegansveritatem
A
T
Transforming a 3D point to a 2D point
2
Replies
25
Views
4K
TCH68k
T
V
Proof for tan4φ through Euler formulae
Replies
3
Views
590
vik121
V
N
vertical asymptote or perforation
Replies
5
Views
4K
Dr.Peterson
Dr.Peterson
W
https://www.freemathhelp.com/forum/threads/topic-triangle-similarity.123756/
Replies
2
Views
507
Dr.Peterson
Dr.Peterson
R
Area of a rectangle with missing dimensions
Replies
4
Views
853
Steven G
Steven G
W
Topic: Triangle similarity
Replies
2
Views
449
Dr.Peterson
Dr.Peterson
D
Missing coordinate problem in triangle
Replies
4
Views
1K
dhie_20
D
N
Problem simplifying an equation
Replies
4
Views
683
yoscar04
yoscar04
R
Problem finding the tangent intersection of 3 parametrical functions
Replies
0
Views
434
Robinp
R
B
Elastic Collisions in Two Dimensions
Replies
5
Views
960
HallsofIvy
H
B
I don't understand this proof for sine Θ = cos (90° - Θ)
Replies
5
Views
4K
Steven G
Steven G
P
Help with a Pre-Calc Question, hope I'm on the right thread
Replies
13
Views
2K
Singleton
S
A
Help with a mediocre geometry question
Replies
2
Views
672
Dr.Peterson
Dr.Peterson
N
Find the length of CF given a rectangle
Replies
7
Views
985
Dr.Peterson
Dr.Peterson
J
Help with formula? Define "centerpoints" with defined variables
Replies
1
Views
722
Cubist
Cubist
C
for game lua- but learning is learning right?
Replies
2
Views
490
craftyscotsman
C
F
Piston displacement
Replies
2
Views
590
yoscar04
yoscar04
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