Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
Y
Modulus function: Solve |x - 4| - |x + 2| = 6 for x
Replies
1
Views
739
stapel
stapel
Y
Determine Cartesian equation for parametric equations x = 1 - sec(2t), y = 1 + tan(2t), pi/4 < t < 3pi/4
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1
Views
752
stapel
stapel
Y
Solve 2 cos(2x + pi) < 1 for -pi <= x <= pi
Replies
1
Views
786
stapel
stapel
C
How do I find the radius of the circle? (An isosceles triangle ABC has its vertices on a circle....)
2
Replies
35
Views
8K
Dr.Peterson
Dr.Peterson
C
Find the ratio x:y. (lengths of sides in geometric figure)
2
Replies
22
Views
5K
The Highlander
The Highlander
C
Calculate |NR|. (problem with geometrical ratios)
Replies
4
Views
2K
chijioke
C
Z
Acute-angle relations: IF sin(x) = tan(y); for acute angles x and y, how are the angles related? (multiple-choice)
Replies
6
Views
2K
blamocur
blamocur
Scott92
Superposition theorem (i've done what i believe is correct to work out current at each resistors but im not sure its correct)
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4
Views
2K
Scott92
Scott92
I
Calculating a volume of an object using ratio (ratios given for slopes on parts of ramp construction)
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3
Views
1K
khansaheb
K
L
Can someone instruct me to find the area of the shaded triangle ?
Replies
10
Views
2K
Laia
L
Scott92
How do you find what the function of a sine wave graph is
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12
Views
2K
Scott92
Scott92
shahar
angles between near diagonals in regular polygon
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5
Views
2K
Dr.Peterson
Dr.Peterson
E
perimeter of a square. one side is 10x the other side is 4x-9. I'm having trouble figuring it out
Replies
3
Views
1K
The Highlander
The Highlander
L
Circle problem: TP is tangent to circle PQRS, QR=QP, m(SPT)=32*, m(RSQ)=56*
Replies
8
Views
2K
Dr.Peterson
Dr.Peterson
S
Finding a line that is perpendicular to the z-axis and passes through a set of points that form a plane
Replies
6
Views
2K
Dr.Peterson
Dr.Peterson
M
Find smallest area of rectangle based on lines inside.
Replies
9
Views
2K
Dr.Peterson
Dr.Peterson
L
Please solve: regular pentagon ABCDE; FE, EG, GH sides of regular n-gon; AB horizontal, EG vertical; m(<DEF)=69degrees
Replies
16
Views
4K
Laia
L
J
Geometry problem: find the values of AD , AB , AE and AC
Replies
4
Views
7K
math_parent
M
J
Lean of Tree: from the posted picture, how many degrees is this tree leaning?
Replies
2
Views
2K
Jsue
J
R
The pendulum of a grandfather clock consists of a circular disc of radius 5cm attached to a straight length 45cm.
Replies
2
Views
922
The Highlander
The Highlander
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