Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
R
How do i come up with a general case for the area and perimeter of a parbelos?
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843
RL2328
R
A
Help with this problem?
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1
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885
stapel
stapel
L
How does THETA change with PSI? (irregular polygon)
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0
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2K
LowEnergy
L
M
if cos 2 theta = -0.5625 how do i find theta?
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5
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2K
stapel
stapel
H
Perimeter of a rectangle is 22 Cm. Length of it's diagonal is...?
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2
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3K
stapel
stapel
T
How to simplify this trig equation: 2cosx(1+cosx)=1-(3^(1/2))sin2x
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1
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1K
Tarro
T
Q
Find the value of x in the geometrical figure
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3
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2K
Questraman
Q
V
Cargo Bin Turn Radius: piece is 300" long x 24" T x36" w, door is 136" w x 81" t,...
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4
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1K
stapel
stapel
B
Updated - Trig Idents Problem.
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1
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1K
stapel
stapel
B
Trig Identities: 10(4Sin2A+SinB)+2(4Sin2A+SinB)2+0.5(4Sin2A+SinB)3
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4
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2K
BWJohnson
B
T
Trying to calculate non linear count value based on azimuth value
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0
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894
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
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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
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3K
stapel
stapel
E
Transitive properties and two column proofs
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1
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1K
stapel
stapel
S
How to figure out new height when I size up width and length?
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1
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903
Harry_the_cat
Harry_the_cat
B
equation of a square; need equation similar to eqn for circle
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1
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3K
lookagain
L
T
Multiply the Numerator and denominator by a common expression: *cos^2/1 - sinx, etc.
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2
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1K
thebeanstalk
T
I
Can someone explain how to use trig and solve this? "In triangle ABC, ∠ABC = 90◦...."
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2
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2K
Otis
Otis
J
2 Unit Circles on a Coordinate Plane
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5
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2K
pka
pka
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