Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
C
Verifying an identity
Replies
7
Views
579
skeeter
skeeter
L
Cosinus or Tangens? | Isometric 2.5D movement
Replies
1
Views
406
Dr.Peterson
Dr.Peterson
L
Prove the given trigonometric functions.
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4
Views
414
lambert
L
U
Find the trigonometric ratios indicated
2
Replies
29
Views
2K
Otis
Otis
K
Finding an angle when three sides are given
Replies
4
Views
483
Steven G
Steven G
K
Homework proving and solving identities
Replies
9
Views
565
Deleted member 4993
D
I
Serious help to solve this solving trigonometric identities
Replies
2
Views
290
Steven G
Steven G
F
Need help please! Proofs
Replies
3
Views
360
Deleted member 4993
D
S
Triple angle proof
Replies
5
Views
556
Deleted member 4993
D
L
can someone explain this step by step?
Replies
3
Views
361
Otis
Otis
A
Area of a polygon
Replies
7
Views
516
Otis
Otis
P
Goniometric problem with triangle and semicircle
Replies
1
Views
295
mmm4444bot
mmm4444bot
A
trig radians
Replies
5
Views
466
Otis
Otis
B
Difficult geometry problem
Replies
6
Views
521
lev888
lev888
A
Observers simultaneously measure the angle of elevation of a drone. One angle is measured as 38 degrees, the other is 73 degrees . If the observers ar
Replies
12
Views
774
Otis
Otis
C
Harmonic motion problem
Replies
3
Views
513
topsquark
topsquark
A
Coordinates of intersection between an oblique rectangular pyramid and an angled plane
Replies
4
Views
621
andjo
A
A
Area of a square inside of a pentagon inside of a hexagon, and hexagons area is 15
Replies
8
Views
728
Dr.Peterson
Dr.Peterson
C
Please solve this nasty question
Replies
6
Views
502
Steven G
Steven G
A
Prove trigonometric identites see picture for more instructions
Replies
3
Views
310
Deleted member 4993
D
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