Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
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)
Replies
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
2K
khansaheb
K
L
Can someone instruct me to find the area of the shaded triangle ?
Replies
10
Views
3K
Laia
L
Scott92
How do you find what the function of a sine wave graph is
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12
Views
3K
Scott92
Scott92
shahar
angles between near diagonals in regular polygon
Replies
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
3K
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
5K
Laia
L
J
Geometry problem: find the values of AD , AB , AE and AC
Replies
4
Views
8K
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
1K
The Highlander
The Highlander
M
Urgent Help Please: "The math club designed a pennant for the school team, in the shape of an isosceles triangle."
Replies
3
Views
3K
The Highlander
The Highlander
M
finding r3 in terms of r1 and r2: circles, C1 and C2, C1 larger than C2; C1 tangent to C2, y-axis, and x-axis; C2 tangent to C1 and x-axis
Replies
19
Views
7K
mario99
M
T
Maximize an angle by finding a point's coordinates
Replies
2
Views
988
Dr.Peterson
Dr.Peterson
A
Show that the angles ACB and DCF are equal
Replies
0
Views
1K
anonym4=
A
B
Finding the length of a curved line between two points
Replies
9
Views
3K
blamocur
blamocur
A
Follow-up to: About how many m^2 of steel will Marcel need to build the pool?
Replies
1
Views
936
stapel
stapel
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