Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
M
Proof for parallel lines
Replies
8
Views
1K
Dr.Peterson
Dr.Peterson
N
What is the slant height of this cone?
Replies
4
Views
1K
JeffM
J
N
What is the surface area of this shape?
Replies
5
Views
2K
Dr.Peterson
Dr.Peterson
E
Perimeter inequality
Replies
3
Views
1K
eligotas
E
S
Two Column Proof Problem
Replies
1
Views
865
Steven G
Steven G
L
tan(x/2-π/2)=sqrt2 ?
Replies
3
Views
1K
topsquark
topsquark
B
Solve: cos^−1(2x) + sin^−1(x) = π/3
Replies
19
Views
2K
Bobby Bones
B
B
"Strange" exam questions?
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2
Views
1K
Bobby Bones
B
N
What is the volume of this shape?
Replies
3
Views
1K
Bobby Bones
B
B
Satellite line of site, cloud obstruction
Replies
5
Views
1K
Dr.Peterson
Dr.Peterson
M
Help asap
Replies
1
Views
668
Deleted member 4993
D
S
Different solutions to one trig equation?
Replies
6
Views
1K
skeptipus
S
B
Differentiate sin(2x+y)
Replies
2
Views
765
Bobby Bones
B
B
Using Hyperbolic functions, Solve sinh(2x) = 8cosh(x). Give answer in ln.
Replies
6
Views
2K
Bobby Bones
B
I
How to prove sin 45 = 1/root 2 and root 2/2 same?
Replies
14
Views
19K
Bobby Bones
B
O
Challenge Geometry Prob: Suppose segment XY is divided into millions of congruent...
Replies
7
Views
2K
Harmless Drudge
H
D
need help: Greg and Kristine are on opposite ends of a zip line that crosses a gorge.
Replies
13
Views
3K
topsquark
topsquark
shahar
Reading Comphernsive - Plato's cricle
Replies
8
Views
1K
shahar
shahar
I
How do we get (root) 1000 = 10 (root) 10?
Replies
2
Views
1K
Deleted member 4993
D
shahar
Building double angles in isosceles triangle by compasses and striaghtedge
Replies
6
Views
1K
Steven G
Steven G
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