Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
J
help with problem on number of tiles needed for pool
Replies
2
Views
3K
Denis
D
K
Prove Trig Identity: sin(a+b)/sina+sinb=sina-sinb/sin(a-b)
Replies
2
Views
3K
kate93
K
J
perimeter of triangle in circle
Replies
1
Views
1K
Deleted member 4993
D
S
Solve: 2sin theta - cos theta =0 for 0< or = theta < 2 Phi
Replies
8
Views
7K
Deleted member 4993
D
S
Solve: cos^2 theta/2 - cos theta =0 for 0<or = theta <2Phi
Replies
3
Views
4K
SueC01
S
C
3d vector interpolation: 2 phasors of known amplitude
Replies
3
Views
2K
castwerks
C
A
Basic Trigonometry Identities: solve sec^2x-1/1-csc^2x
Replies
3
Views
6K
soroban
S
K
Finding the angles of a triangle: perimeter 43, AB = 5x-8,
Replies
2
Views
2K
K‡rbyroth
K
V
Inverses of Trig Functions: Tan^-1sq. root of 3, etc.
Replies
7
Views
2K
fasteddie65
F
B
surface area of polygons: regular square, apothem of 12
Replies
1
Views
3K
mmm4444bot
mmm4444bot
E
Trig Proofs / write an equation using only sines, cosines
Replies
7
Views
2K
EndersCatalyst
E
K
Surface area of a Tube
Replies
3
Views
4K
K‡rbyroth
K
J
The Saccheri-Legendre Theorem
Replies
1
Views
3K
Denis
D
J
Side Side Side proof
Replies
1
Views
1K
Deleted member 4993
D
B
vector question, 2 different vectors
Replies
3
Views
1K
mmm4444bot
mmm4444bot
F
Geometry question
Replies
3
Views
10K
soroban
S
L
need help with finding slopes (quadrilateral w/ par. sides)
Replies
12
Views
3K
Denis
D
M
A Geometry Word Problem: Crossing Ladders
Replies
5
Views
6K
Denis
D
K
Cylinders: cylindrical pot, r=4; cylindrical cup, r=3/2, h=4
Replies
1
Views
2K
tkhunny
tkhunny
L
Pythoream Theorem
Replies
5
Views
2K
Loren
L
You must log in or register to post here.
Top