Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
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Diagram of regular polygon and exterior point
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3
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2K
soroban
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Exact solution for tan2x-cotx=0 in the interval [0,2pie)
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4
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26K
Mrspi
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Radian Measure: find theta, given sin(theta)=-sqrt(3)/2 and
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2
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5K
galactus
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trig question: if cos(theta)=1/9, theta acute, then find....
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6
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5K
stapel
stapel
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trig help
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9
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3K
jonboy
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Proof help! 1/cscx - 1/cotx = cscx + cotx
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2
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12K
Sid
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C
Focus of a parabola: y^2 = 12x
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5
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24K
confused0874
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Please help me solve: A skier sees the top of a tower....
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3
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4K
soroban
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Cuboids: drawing 1×2×3, 2×3×4, 2×4×6
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4
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15K
stapel
stapel
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Word Problem: finding area of track, length of lanes
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6
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28K
soroban
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C
Geometric proofs : a² -b²; (a+b)²
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3
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33K
CS227
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Kind of confused: finding points giving required angles
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10
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4K
tkhunny
tkhunny
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something esoteric? (finding locus of points by 2nd method)
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6
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3K
sujoy
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A and B are fixed points. P is a moveable point such that...
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3
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2K
sujoy
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R
a little help with 8 trig/geometry topics...?
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1
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1K
stapel
stapel
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Draw line AB, with A and B 2" apart. Then construct....
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4
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3K
soroban
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L
Please help me find trig values of these angles
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1
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2K
stapel
stapel
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cscx-sinx=(cotx)(cosx) ... and more of those
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1
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2K
stapel
stapel
G
trig expression for every angle coterminal to s
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3
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4K
stapel
stapel
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Area of a Triangle Formula: inradius & semiperimeter
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10
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43K
TchrWill
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