Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
R
Rhombus in a circle, find angles
Replies
2
Views
663
rmehta
R
T
Geometry
Replies
4
Views
815
yma16
Y
U
Proof Tan 3x is = Sin 3x/ Cos 3x using De Moivre's theorem
Replies
5
Views
5K
updatesvc
U
N
Infinite Sum of Series Which Switches Signs and ONLY Occurs on Fibonacci Numbers
Replies
8
Views
1K
NeeleshGupta023
N
S
What are relation between prime numbers and fibonacci numbers? 2D Fibonacci spiral and Primes.
Replies
0
Views
2K
Sylvi91
S
N
Need help with a question on 'Nets'please!
Replies
5
Views
758
Otis
Otis
B
Help on Math Problem from 1990 (Involves area,trigonometry)
Replies
1
Views
529
Deleted member 4993
D
K
Trigonometric equation
Replies
11
Views
2K
Kalen12
K
E
Tilt angle with y and z coordinates ?
Replies
0
Views
640
Elijah14
E
K
Circle and triangle
Replies
1
Views
655
yma16
Y
F
What is the area of the shaded region?
Replies
5
Views
689
tkhunny
tkhunny
Y
Ratio of Areas of Two Triangles
Replies
7
Views
1K
Dr.Peterson
Dr.Peterson
D
Calculating line of sight angles from two different photographs
Replies
2
Views
660
drewandsarah1
D
O
trigonometry
Replies
1
Views
528
Otis
Otis
J
Circle problem
Replies
6
Views
808
JurajJay
J
shahar
Calculating perimeter by area formula
Replies
4
Views
770
shahar
shahar
J
Venn Diagram
Replies
9
Views
2K
Dr.Peterson
Dr.Peterson
N
Some basic geo/trig
Replies
3
Views
603
ksdhart2
K
Integrate
What are homogenuous coordinates and how do they relate to projective space? What even is projective space?
Replies
1
Views
543
tkhunny
tkhunny
R
Circle: anyone knows how we get at A !=B Ellipse?
Replies
1
Views
508
lev888
lev888
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