Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
R
Circle: anyone knows how we get at A !=B Ellipse?
Replies
1
Views
584
lev888
lev888
A
2sin(πx-3π)-4
Replies
2
Views
893
Dr.Peterson
Dr.Peterson
M
Doesn't the law of cosines prove SAS?
Replies
15
Views
2K
Deleted member 4993
D
M
How to get from tangent to half angle sine
Replies
4
Views
810
Dr.Peterson
Dr.Peterson
I
How to break 5√2?
Replies
5
Views
818
Dr.Peterson
Dr.Peterson
O
Geometry Problem
Replies
5
Views
907
otpeng
O
P
Rational Functions
Replies
5
Views
2K
Otis
Otis
I
How to get √(1-cosθ) from √(R² + R² − 2R² Cosθ)?
Replies
5
Views
2K
topsquark
topsquark
S
Please help with this pyramid problem
Replies
6
Views
1K
Dr.Peterson
Dr.Peterson
S
Trigonometry Question can't reach the solution please help.
Replies
2
Views
518
MarkFL
MarkFL
A
Please help with this hexagon problem
Replies
12
Views
2K
gandrew
G
Y
finding x
Replies
6
Views
2K
kirtana
K
S
Reflections of technology
Replies
6
Views
998
pka
pka
M
Geometry Question.
Replies
2
Views
516
Harry_the_cat
Harry_the_cat
F
Proportional relationships
Replies
2
Views
583
Pedrox32
P
N
The centre of mass of circle section.
Replies
3
Views
1K
Dr.Peterson
Dr.Peterson
G
Finding the coordinates of a line, having another line and an angle between them
Replies
3
Views
711
tkhunny
tkhunny
Y
About cone - Spatial Geometry
Replies
4
Views
928
Yuri Caetano
Y
M
Integer sides and angles in a right triangle.
Replies
6
Views
2K
MegaMoh
M
J
Help on circles problem
Replies
3
Views
1K
Dr.Peterson
Dr.Peterson
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