Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
N
I need help: "Calculate the perimeter of the composite figure"
Replies
7
Views
3K
Nauman
N
R
Graphing a weird shape (based on the block game minecraft)
Replies
2
Views
1K
Dr.Peterson
Dr.Peterson
J
Intersection of tangent line with circle
Replies
5
Views
1K
jonnburton
J
S
Vectors question: ABCDEF is a regular hexagon with centre O. M is the midpoint of BC. X is on AB extended, such that....
Replies
1
Views
1K
Dr.Peterson
Dr.Peterson
M
Questions about the union of these sets?
2 3 4
Replies
61
Views
16K
pka
pka
S
Vectors question: is the mark scheme wrong?
Replies
2
Views
1K
shuphie
S
R
Need help to find point E so that area of X equals area of Y.
Replies
2
Views
1K
Dr.Peterson
Dr.Peterson
Agent Smith
Errara Humanum Est
Replies
10
Views
3K
Agent Smith
Agent Smith
A
Inverse Trig Problem: Prove arcsin(1/x) = -arccos((sqrt{x^2 - 1})/x)
Replies
7
Views
4K
Dr.Peterson
Dr.Peterson
W
Circles' intersection area is π/2, smaller circle's radius is 1; larger circle's radius=?
Replies
12
Views
3K
khansaheb
K
H
How could they draw the line ?
Replies
1
Views
931
Dr.Peterson
Dr.Peterson
O
Show that dioganals (successive vertices of a quadrilateral are A(2,3),B(-1,4),C(-8,11), and D(3,9))
Replies
4
Views
1K
Dr.Peterson
Dr.Peterson
A
Solar panel row spacing calculation
Replies
3
Views
2K
blamocur
blamocur
V
How to find the lenght of NO? "Given that MN = 12, OP = 24, OQ = 10, what is shaded area?"
Replies
5
Views
1K
Vijlak
V
M
Help: What is the length of [BP]?
Replies
4
Views
1K
Dr.Peterson
Dr.Peterson
L
Geometry Help ASAP! 'If AD = 30, what is BC? If ST = 2, QS = 4, PT = 5, find PQ"
Replies
5
Views
1K
khansaheb
K
A
geometry problem: "Consider a semicircle where AB is the diameter. On this semicircle, there's a point C..."
Replies
11
Views
5K
limiTS
L
M
2 questions about the exact geometry of a 1 unit line segment
Replies
15
Views
2K
pka
pka
F
two rays are drawn from c to pts A1, A2 in plane alpha, B1, B2 in plane beta.
Replies
2
Views
881
Dr.Peterson
Dr.Peterson
O
Double angle problem: (sin(2a - b)/(cos(b)sin(a)))(tan(b)/tan(2a) + 1) = cot(a) - tan^2(b)tan(a)
Replies
3
Views
2K
OttoVonMight
O
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