Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
A
Trigonometry question: prove that 1/sin(10°) = -2 + 8cos2(10°)
Replies
2
Views
922
Dr.Peterson
Dr.Peterson
R
Correct geometric name for this two-dimensional figure
Replies
7
Views
1K
rww88
R
S
2 Tangent Semi Circles Tangent in a Ray
Replies
2
Views
4K
yma16
Y
shahar
Is the number of diameter divided by the number of chords is a fixed number?
Replies
7
Views
2K
Dr.Peterson
Dr.Peterson
S
What is the Max number of bags that can be made from this paper?
Replies
1
Views
1K
Denis
D
shahar
what's cyclically ordered set? Are solid bodies have cyclically ordered set of point?
Replies
5
Views
1K
Deleted member 4993
D
I
Find distance between two points in a cube
Replies
2
Views
1K
mmm4444bot
mmm4444bot
J
Maximum pen area: 60m fencing for sheep pen along brick wall
Replies
1
Views
1K
stapel
stapel
S
Find the missing length in this shape
Replies
9
Views
1K
schicco
S
A
Spherical Cup Volume: red portion is filled volume, V = (pi/3)*(h^2)*[3r-h]
Replies
17
Views
7K
Dr.Peterson
Dr.Peterson
D
Cute triangle stuff!
Replies
1
Views
620
Dr.Peterson
Dr.Peterson
P
Pool Design Question: You have 88m of fence available...
Replies
1
Views
1K
tkhunny
tkhunny
J
How to measure this missing area? (replacing existing countertop)
Replies
5
Views
1K
mmm4444bot
mmm4444bot
I
Need help finding an equation (can't give more info: I'm patenting this)
Replies
7
Views
2K
mmm4444bot
mmm4444bot
I
What will be the graph if x=t and x=t²?
Replies
6
Views
1K
Harry_the_cat
Harry_the_cat
shahar
Why there is no mathematic law​ in pi representation?
Replies
5
Views
5K
mmm4444bot
mmm4444bot
R
One over?? What does 'one over' actually mean?
Replies
5
Views
1K
Rosslando
R
K
Help! man stands on ground 12m away from building which is 16m high. (+4 other Q's)
Replies
5
Views
1K
sinx
S
M
plane perpendicular to the planes 2x-y+z-3=0 and -x+3z-2=0
Replies
4
Views
1K
pka
pka
M
linear programming: sales quotas for 2 new insurance products
Replies
2
Views
850
Max12345
M
You must log in or register to post here.
Top