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Geometry and Trig
Ask your questions about all levels of geometry from elementary school through college.
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A
Inverse Trig Problem: Prove arcsin(1/x) = -arccos((sqrt{x^2 - 1})/x)
apple2357
Dec 21, 2023
Replies
7
Views
363
Dec 22, 2023
Dr.Peterson
W
Circles' intersection area is π/2, smaller circle's radius is 1; larger circle's radius=?
Wikh
Dec 12, 2023
Replies
12
Views
505
Dec 16, 2023
khansaheb
K
H
How could they draw the line ?
hablo111
Dec 15, 2023
Replies
1
Views
206
Dec 15, 2023
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))
Oguzzzhan
Dec 12, 2023
Replies
4
Views
189
Dec 12, 2023
Dr.Peterson
A
Solar panel row spacing calculation
Aub
Dec 10, 2023
Replies
3
Views
272
Dec 11, 2023
blamocur
V
How to find the lenght of NO? "Given that MN = 12, OP = 24, OQ = 10, what is shaded area?"
Vijlak
Dec 6, 2023
Replies
5
Views
261
Dec 6, 2023
Vijlak
V
M
Help: What is the length of [BP]?
medjdi
Dec 5, 2023
Replies
4
Views
251
Dec 5, 2023
Dr.Peterson
L
Geometry Help ASAP! 'If AD = 30, what is BC? If ST = 2, QS = 4, PT = 5, find PQ"
Laksha2011
Dec 1, 2023
Replies
5
Views
348
Dec 2, 2023
khansaheb
K
A
geometry problem: "Consider a semicircle where AB is the diameter. On this semicircle, there's a point C..."
askingme
Nov 29, 2023
Replies
11
Views
509
Dec 1, 2023
limiTS
L
M
2 questions about the exact geometry of a 1 unit line segment
Mates
Nov 25, 2023
Replies
15
Views
474
Nov 26, 2023
pka
F
two rays are drawn from c to pts A1, A2 in plane alpha, B1, B2 in plane beta.
FollEnsoo
Nov 24, 2023
Replies
2
Views
219
Nov 24, 2023
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)
OttoVonMight
Nov 19, 2023
Replies
3
Views
231
Nov 20, 2023
OttoVonMight
O
M
Identifying coordinates of a triangle plotted on a graph.
MathTrigTexas
Nov 15, 2023
Replies
5
Views
347
Nov 17, 2023
khansaheb
K
M
Is this a legitimate geometric proof that the infinite sum of 1/(2^n) = 1?
Mates
Nov 14, 2023
2
Replies
23
Views
668
Nov 16, 2023
Mates
M
M
Tile problem: From 3n triangular tiles and 1/2(n - 1)n six-sided tiles, an equilateral triangle can be...
MathIsEverything
Nov 16, 2023
Replies
0
Views
234
Nov 16, 2023
MathIsEverything
M
H
A semi circle, r=1, is bisected by a chord parallel to the base so the segment above the chord is...
henrygreenall123
Nov 14, 2023
2
Replies
24
Views
730
Nov 15, 2023
BigBeachBanana
M
The simplest form of the expression (cot(x) + cos(x))/(1 + cosec(x))
mustafaymis
Nov 14, 2023
Replies
4
Views
201
Nov 14, 2023
BigBeachBanana
A
"How to calculate the flat part of surface on the sphere" explanations below.
Anton_Bazhenov
Nov 4, 2023
Replies
4
Views
380
Nov 9, 2023
Dr.Peterson
N
Sum of shaded areas: The area of a rectangle ABCD is 1. Assume E is on the diagonal AC...
nanase
Nov 7, 2023
Replies
2
Views
376
Nov 8, 2023
nanase
N
E
Quadrilateral with 2 congruent sides and two other sides not congruent. How do I solve this without Trig?
Ed.Rap
Nov 8, 2023
Replies
3
Views
260
Nov 8, 2023
stapel
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