Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
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Task translation: "ABC and CDE are equilateral triangles. Both triangles have A as a common corner. (a) Show that AD = BE (b) Decide the angle of AFB"
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2
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463
Dr.Peterson
Dr.Peterson
A
Calculate the volume of a cube inside an octahedron?
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10
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3K
Ana.stasia
A
D
Calculator for determining moment arm
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0
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321
dbasmb
D
A
I believe this is a typo, but just in case.
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2
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670
Ana.stasia
A
A
Prove mistake in measurements
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6
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594
Dr.Peterson
Dr.Peterson
H
I Need Help With A Geometry Question
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5
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2K
jonah2.0
jonah2.0
A
Why is the radius of an inscribed circle of a hexagon the height of the triangles that make the hexagon?
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2
Views
288
pka
pka
A
what is a cargo nets break strength?
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4
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584
Deleted member 4993
D
A
The cube's edges have been cut off. How to calculate the volume of what remains?
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3
Views
1K
Dr.Peterson
Dr.Peterson
A
How do I calculate the volume of a four-sided pyramid using only a diagonal and two angles?
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2
Views
455
Ana.stasia
A
L
Trapezoidial and mid ordinate?
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6
Views
667
jonah2.0
jonah2.0
A
the unit circle
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9
Views
725
ange204
A
A
Major triangle problem HELP
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8
Views
678
Ana.stasia
A
F
Angles in the circumference
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6
Views
777
pka
pka
T
Geometry - oblique triangle law question
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3
Views
479
Dr.Peterson
Dr.Peterson
J
Enlarge a geometric shape
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4
Views
467
Jame
J
A
How do I calculate the surface are of a trapezoid If that trapezoid is inside of a triangle?
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5
Views
513
Dr.Peterson
Dr.Peterson
A
How do I calculate b on a parallelogram given some info?
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2
Views
412
Ana.stasia
A
D
Proof question with Tangents and Circle
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2
Views
394
HallsofIvy
H
M
Extend Length of Line in 3D Space (Find New End Point)
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7
Views
2K
Mikester4411
M
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