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Geometry and Trig
Ask your questions about all levels of geometry from elementary school through college.
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Can I prove if this trapezoid is possible/impossible?
pineapplewithmouse
Apr 16, 2023
Replies
19
Views
737
Apr 17, 2023
pineapplewithmouse
P
B
Using fixed volume to find minimum surface area of cylindrical container w/ hemispherical lid, flat base
briscoecharles1
Apr 16, 2023
Replies
3
Views
346
Apr 17, 2023
Dr.Peterson
T
The vertical asymptote of a tangent for f(x) = 1/tan(pi*x)
tttete7
Apr 14, 2023
Replies
2
Views
331
Apr 14, 2023
skeeter
I
Trig and Inequality question: Find the θ to 4 significant digits for 0 ≤ θ < 2π if tan θ = -0.7434
I_Just_Want_To_Pass
Apr 1, 2023
Replies
10
Views
2K
Apr 13, 2023
The Highlander
A
Trig equation: Solve -6 * sqrt[3] = -9 * csc(3 *theta) for theta
Audentes
Apr 11, 2023
Replies
10
Views
666
Apr 11, 2023
Audentes
A
T
Neighbor's electricity cable (digging to find cable, hook up to it)
Trex123
Apr 8, 2023
Replies
11
Views
518
Apr 9, 2023
Dr.Peterson
Robot Exit Angle Between Two Objects
imk
Apr 7, 2023
Replies
10
Views
513
Apr 9, 2023
insanecarrots
I
The diameter is the longest cord in the circle
shahar
Mar 31, 2023
Replies
3
Views
376
Apr 9, 2023
insanecarrots
I
M
Show that the area of a triangle with sides a and b and with an included angle θ is A=(1/2)*a*b*sin(θ)
MentholMan
Apr 5, 2023
Replies
5
Views
417
Apr 7, 2023
Dr.Peterson
K
Help with volume formula for elongated sphere of clay
Kyria
Apr 4, 2023
Replies
3
Views
525
Apr 7, 2023
Kyria
K
K
Is my answer wrong? I got (1/2)a^2(2π−sin(2Ø)−2cos(Ø))
Kulla_9289
Mar 31, 2023
2
3
Replies
45
Views
1K
Apr 2, 2023
blamocur
A
Is there a relationship between the ratios of arc to chord between the angles ?
Ahatmose
Mar 31, 2023
Replies
7
Views
293
Mar 31, 2023
Dr.Peterson
B
Did I get these trig questions right? (If P(1,-5) is on terminal arm of theta, find sec(theta).)
breadsticks
Mar 29, 2023
Replies
3
Views
340
Mar 30, 2023
Steven G
A
The Pyrthagorean Circle
Ahatmose
Mar 27, 2023
Replies
2
Views
352
Mar 29, 2023
Ahatmose
A
T
I need to find a way to determine if a ray is pointing at a line.
tetch
Mar 28, 2023
Replies
15
Views
441
Mar 29, 2023
tetch
T
G
Euclidean Geometry Problem: Prove that (AB>AC)⟺(BD>CD)
Giorgos Giannoulakis
Mar 26, 2023
Replies
1
Views
262
Mar 26, 2023
Dr.Peterson
S
need help sketching diagram! (no answer needed) "A communication tower is 35 m tall...."
senakuny
Mar 24, 2023
Replies
14
Views
950
Mar 25, 2023
The Highlander
A
Inscribed circle in a triangle with known sides
Ahatmose
Mar 24, 2023
Replies
12
Views
499
Mar 25, 2023
Ahatmose
A
T
Given an ellipse, determine how a cone was sliced to create it
Tsunamibomb
Mar 21, 2023
Replies
8
Views
521
Mar 25, 2023
Dr.Peterson
S
need help drawing diagram for "A retaining wall is leaning at an angle of 70° to the horizontal...."
senakuny
Mar 24, 2023
Replies
9
Views
667
Mar 24, 2023
Dr.Peterson
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