Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
S
Rectangle MATH - Finding the value of MT
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4
Views
989
pka
pka
O
Math Problem Help Please
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2
Views
662
Otis
Otis
B
Trigonometry
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1
Views
607
Dr.Peterson
Dr.Peterson
shaharhas
Circle axioms
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15
Views
2K
Denis
D
R
Oblique Triangle Diagram Problem
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10
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3K
ronjerby
R
H
trigonometry: what's the range of cosα sinβ if sinα cosβ = 1/2 ?
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6
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2K
MarkFL
MarkFL
A
Trig identity: How do I know that cos^2(x) + sin^2(x) = 1 for ALL angles?
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4
Views
960
ksdhart2
K
R
"..If m(arc AC) = 105˚, what is the measure of ∠BXY?"
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15
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3K
Denis
D
S
Calculate Centre, Radius and Sweep angle of arc given start point, tangent line of start point and end point
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5
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3K
Dr.Peterson
Dr.Peterson
C
Find the length of EF using similar triangles (portion of amusement-park ride)
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16
Views
8K
Dr.Peterson
Dr.Peterson
A
SAT problem: Which graph could approximate distance of tip of minute hand to floor?
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1
Views
763
mmm4444bot
mmm4444bot
D
Proofs w/ hyperbolic fcns: sinh^2(x) = 1/(1 + coth^2(x)) and sinh(x/2) = sgn(x) sqrt{(cosh(x) - 1)/2}
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7
Views
1K
dr.trovacek
D
D
What is this figure called? It looks like a filled half parabola.
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1
Views
752
Dr.Peterson
Dr.Peterson
O
Help with this problem please?
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4
Views
954
MarkFL
MarkFL
O
Express the length of a side of Q in terms of the length of a side of P.
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2
Views
644
Dr.Peterson
Dr.Peterson
Steven G
Area of circle is in square units???
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7
Views
2K
JeffM
J
R
If side P = 8cm, Q = 7cm and side R = 5cm. So the area of the triangle is?
Replies
1
Views
676
Dr.Peterson
Dr.Peterson
H
finding exact values trig: Suppose θ = tan^{-1}(12/5). Find the exact value of sin(θ)
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1
Views
1K
Otis
Otis
N
Golden Rectangles: construct a golden rectangle using an 8.5x11'' piece of paper with 11 being the desired length
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6
Views
3K
Denis
D
I
A 2D point projection on a 3D segment.
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2
Views
783
HallsofIvy
H
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