Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
R
Even rotational center of an equilateral triangle?
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4
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2K
rg12
R
S
Trigonometry: When x+y = (2 pi)/3, x,y >= 0, then max/min of sin(a)+sin(b)=?
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15
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7K
yma16
Y
I
Could you simplify sin(360⁰-θ)?
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3
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2K
mmm4444bot
mmm4444bot
I
What does it mean (180⁰ - θ)?
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9
Views
2K
MarkFL
MarkFL
T
Equilateral triangles (marked); M, N, P are midpoints of AD, CF, EB. Prove MNP is...
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7
Views
2K
Taric
T
I
Why (90⁰-θ)?
Replies
1
Views
823
MarkFL
MarkFL
H
Find the sides of right triangle, given only the area
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11
Views
2K
Denis
D
B
Trignometry
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3
Views
1K
Dr.Peterson
Dr.Peterson
S
why 2 circles of 5cm diameter are not equivalent to a circle of 10cm diameter?
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6
Views
2K
scrlet
S
I
Solve sin(2θ) = 1
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7
Views
5K
mmm4444bot
mmm4444bot
I
If tanθ = 1, then how to calculate θ = 45
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16
Views
11K
Dr.Peterson
Dr.Peterson
M
the maximum number of bounded regions created by n line segments w/o lifing pencil?
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4
Views
5K
Dr.Peterson
Dr.Peterson
J
Solve for the value of x:cos 60 degrees +cos^2 60 degrees + cos^3 60 degrees +...+ =x
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3
Views
1K
ksdhart2
K
R
Find Angle Of X
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3
Views
1K
stapel
stapel
J
Trigonometry Functions with a Negative Domain
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5
Views
2K
June
J
B
Tonnage (say 80 ton full) of cone given a percent full.
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1
Views
877
Deleted member 4993
D
D
Don't you be no square... (A 10by10 square contains 100 1by1 squares...)
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16
Views
3K
Denis
D
I
Approximate Rectangle's Rotational Axis Given Corner Vectors?
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2
Views
1K
IllusionSector
I
H
Area of triangle ABC, given AB=AC=sqrt{52}, BC=8, DC=BD, altitude is AD
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2
Views
1K
MarkFL
MarkFL
I
How to calculate a diameter of the beam on a given didtance?
Replies
2
Views
992
IgorFi
I
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