Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
E
Find the angle of a slot on a cylinder
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4
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2K
Dr.Peterson
Dr.Peterson
A
Triangles and circumference: "Given a circle with center O and radius r, draw a chord AB...."
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3
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1K
khansaheb
K
M
Verifying if the 3 incidence axioms are true in a given incidence plane candidate
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7
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3K
mathinker
M
shahar
Dividing a quadrilateral: Can every quadrilateral be divided to 2 triangles?
2
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23
Views
6K
Steven G
Steven G
K
"The diagram shows the roof of a building. The base ABCD is..."
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4
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3K
The Highlander
The Highlander
N
Identify angles: Count the number of obtuse, acuse, reflex, and right angles in drawing
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6
Views
3K
The Highlander
The Highlander
V
The vertical asymptote of a trig function: which is *not* an asymptote of 1/sinpix?
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5
Views
1K
Dr.Peterson
Dr.Peterson
R
Area of unknown triangle: if I ALWAYS know the length of x, y and T, how do I calculate the areas of a1 and a2?
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17
Views
4K
Dr.Peterson
Dr.Peterson
F
Help with definitions: I keep confusing where the zero value lies for the apsis compared to where it lies for the ordnance.
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1
Views
889
stapel
stapel
A
Trigonometry in reverse kinematic of five bar robot: don't understand resolution of system
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1
Views
1K
blamocur
blamocur
C
What type of quadrilateral is this? (not "trapezium". maybe "trapezoid"...? or just "irregular"?)
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16
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4K
khansaheb
K
D
high school co-ordinate geometry with a quadrilateral and two kites
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14
Views
4K
The Highlander
The Highlander
T
Reuleaux triangle confusion (I'm trying to measure a tabletop insert to replace the glass that broke.)
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4
Views
1K
titanium
T
E
Damped Sinusoidal Wave (need to fit a function to the data points)
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3
Views
1K
khansaheb
K
P
Parallelogram ABCD: m(<ABC)=120*, BC>CD, P_{ABCD}=26cm, r=sqrt{3}cm. Find...
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10
Views
3K
The Highlander
The Highlander
H
Sinusoidal Functions - Sine Regression Function
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6
Views
3K
stapel
stapel
D
high school geometry: A=(4,-2), B=(1,9), C=(10,2); AC midpt at (7,0), centroid at (5,3), median...
Replies
4
Views
2K
The Highlander
The Highlander
S
Orthocenter problem: "In an acute-angled ABC H is orthocenter, M is the midpoint of BC...."
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4
Views
4K
Dr.Peterson
Dr.Peterson
K
How many Turns of cable: A full real of cable has a diameter of 60 inches. A job requires 314 feet of cable...
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8
Views
2K
Dr.Peterson
Dr.Peterson
T
Perimeter of a triangle with rounded corners
Replies
12
Views
3K
Dr.Peterson
Dr.Peterson
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