Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
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Cubic Yards of Material in Great Wall of China
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8
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5K
geekily
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Related angles: angles of quadrilateral inscribed in circle
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4
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3K
luissi
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Areas and volume: height of batter in 10-by-12 cake pan
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4
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2K
Deleted member 4993
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fundamental identities: sinx/cot^2x + sinx/cos^2x
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2
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3K
Deleted member 4993
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Sin,Cos,tan Curves (Drawing and reading graphs)
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2
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2K
ulrichsk8ter
U
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Calculate sin2a+cos2a+tan2a, if sina/2=1/3 and a is in QI
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2
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3K
Heather
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Angulary Velocity: diameter 70 cm, biking at 50.4 km/h
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1
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5K
skeeter
skeeter
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Dividing plane into regions: Find greatest number w/ n lines
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1
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6K
TchrWill
T
C
geometry/finding values: -21x+2+-12x+13=180
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4
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2K
cpluva
C
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Find sin, cos, and tan given sin 2x
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3
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12K
axrw
A
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solving trig problems: sin 0 = 3/5, cos 0 = ?
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4
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2K
galactus
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Turning Decimals into Degrees and Minutes!
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4
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3K
wyldkat14
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Questions for Exam
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1
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2K
Deleted member 4993
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A
Trig Equations: arcsin x = arccos(3/5) - arcsin(4/5), etc
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4
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8K
axrw
A
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Arrange 8 strips on plane to form 3 congruent squares
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5
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2K
Mustang1910
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B
A spaceship is fired into orbit from Cape Canaveral....
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2
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5K
TchrWill
T
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Circle inside 1/4-circle w/ r=50: find inner circle's radius
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6
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8K
Kenshin
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can i say that sin(2@-90) = cos(180-2@)?
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1
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2K
soroban
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Altitude Problem: Approximate the altitude of the plane.
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5
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17K
jwpaine
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Use vector methods to prove median from A is perp. to BC
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12
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5K
Slash93
S
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