Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
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Trigo: A boy pushes a ladder up from horiz. on the ground.
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1
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1K
mmm4444bot
mmm4444bot
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Démonstration du théorème de Pythagore
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3
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2K
mmm4444bot
mmm4444bot
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Rectangle: scaling sides if area reduced by 10%
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7
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6K
TheJim
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cylinder, plane, hole..
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3
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2K
mmm4444bot
mmm4444bot
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Inscribed circle in triangle
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5
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2K
krypic
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D
Trig Q: express cos(2x) - sqrt3 sin(2x) in the form of Rcos(2x+alpha)
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1
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2K
Deleted member 4993
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rotational motion: vertical motion of piston (express x is percent of h)
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1
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1K
Deleted member 4993
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How to solve: If f(x) is even fcn, find range of b. f(x)=[3.5+bsinx] where [] is gif
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14
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7K
Deleted member 4993
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R
Area of a curved shell ring
2
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23
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6K
rww88
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J
Challenge: There is a number 3 cut out from a cardboard....
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4
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2K
mmm4444bot
mmm4444bot
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Trigo: A regular heptagon is inscribed in a circle with center O.
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1
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1K
Deleted member 4993
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IF A+B+C=PI and sin A=(sin B+sin C)/2, prove the cot B/2 *cot C/2=3
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2
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1K
SKY KEUNG
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Help please w/ programming a CNC machine
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5
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2K
djvass
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Question says simplify cosec x + cot x
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6
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12K
godfreyjh
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[Geometry] Need help with straightedge only constructions.
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2
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5K
ieatStairs
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How to find angle "a" on this shape?
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5
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1K
zemoddd
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D
Questions about trapezoid and parallelograms
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1
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2K
mmm4444bot
mmm4444bot
G
need help finding missing coordinate: circle w/ eqn x^2+y^2=100, chord at (0,-10),...
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5
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2K
mmm4444bot
mmm4444bot
S
please help solve: isosceles triangle ABC, right angled at B, w/ square inscribed
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6
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3K
Bob Brown MSEE
B
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Ellipse centered in focis with axis inclination
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2
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1K
kepler
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