Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
B
Updated - Trig Idents Problem.
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1
Views
1K
stapel
stapel
B
Trig Identities: 10(4Sin2A+SinB)+2(4Sin2A+SinB)2+0.5(4Sin2A+SinB)3
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4
Views
2K
BWJohnson
B
T
Trying to calculate non linear count value based on azimuth value
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0
Views
960
tbow50
T
Z
Help finding missing endpoint if E is the midpoint of DF. F(5, 8) , E(4, 3)
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3
Views
46K
stapel
stapel
V
Proving that 3 points are collinear
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1
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2K
stapel
stapel
T
Proving Trigonometric Identities: 2cotx cscx - 1/1-cosx - 1/1+cosx
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3
Views
3K
stapel
stapel
E
Transitive properties and two column proofs
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1
Views
1K
stapel
stapel
S
How to figure out new height when I size up width and length?
Replies
1
Views
997
Harry_the_cat
Harry_the_cat
B
equation of a square; need equation similar to eqn for circle
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1
Views
3K
lookagain
L
T
Multiply the Numerator and denominator by a common expression: *cos^2/1 - sinx, etc.
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2
Views
1K
thebeanstalk
T
I
Can someone explain how to use trig and solve this? "In triangle ABC, ∠ABC = 90◦...."
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2
Views
2K
Otis
Otis
J
2 Unit Circles on a Coordinate Plane
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5
Views
2K
pka
pka
J
Testing thread creation
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0
Views
812
Jetstreak
J
R
Understanding Cross Product
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2
Views
1K
RedSquirrel
R
S
I have to start a class looking at a topic involving set of numbers .
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0
Views
796
Sail_bad
S
N
Finding the circumference of a triangle with given base and height?
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4
Views
4K
Deleted member 4993
D
E
overlapping circles
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2
Views
1K
edamasena@hotmail.com
E
J
I can't follow this simplification: arccos(z sqrt[x^2+y^2+z^2]/sqrt[(x^2+z^2)(y^2+z^2
Replies
6
Views
3K
pka
pka
S
Segments and arcs inscribed in circles
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2
Views
1K
Sen118
S
D
Trigonometry Prob: James (standing at D) kicks a ball towards Bob (standing at P).
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0
Views
766
dfkdsjfsdlk
D
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