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Geometry and Trig
Ask your questions about all levels of geometry from elementary school through college.
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R
Trigonometry: The diagram shows a rectangle ABCD inside a semicircle, centre O and radius 5cm, such that |<BOA| = |COD| = theta degrees
reggiwilliams
Mar 25, 2024
Replies
9
Views
234
Mar 25, 2024
The Highlander
A
Volume of triangular prism: The area of a triangular prism is 1/2*base*height*length but why did they add a sin(60)?
annaanna
Mar 23, 2024
Replies
8
Views
299
Mar 24, 2024
annaanna
A
T
A regular polygon is formed by a complex equation’s solutions.
tpupble
Mar 23, 2024
Replies
5
Views
159
Mar 23, 2024
blamocur
R
Co-ordinate Geometry: Verify that 3x - y - 4 = 0 contains pt (2, 2). Hence find shortest distance between line and 6x - 2y + 7 = 0
reggiwilliams
Mar 22, 2024
Replies
3
Views
191
Mar 22, 2024
The Highlander
A
Circle Geometry Question: quadrilateral inscribed in circle; some angle measures given
Aardvqrk
Mar 19, 2024
Replies
2
Views
132
Mar 22, 2024
Dr.Peterson
R
3D projection matrix: Why isn't my 'simple' matrix enough, and what exactly does this real matrix do (better) relative to my matrix?
RMalachi
Mar 22, 2024
Replies
0
Views
69
Mar 22, 2024
RMalachi
R
G
Help with a high school problem involving some analytical geometry and derivation
gacicmia
Mar 20, 2024
Replies
3
Views
135
Mar 21, 2024
The Highlander
B
I'm having trouble with Sum and Difference identity problems like one in the photo and I am unsure of how to go about solving it.
Bluebobber
Mar 20, 2024
Replies
1
Views
103
Mar 20, 2024
Dr.Peterson
A
Please help with this: In triangle XYZ, side y is 8cm, side z is 5cm, and the measure of angle Y is 75 deg; find the length of side x
Andr6173
Mar 16, 2024
Replies
6
Views
230
Mar 20, 2024
Dr.Peterson
N
Please help: On an athletic field, the length of one running track is exactly 400 meters. What is the distance between the front and back lines?
Nahool77
Mar 13, 2024
Replies
2
Views
226
Mar 14, 2024
The Highlander
J
Compartive Pie Chart Question B: Work out the number of packs of vegan sausages that were sold in May 2019
Johnstone
Mar 11, 2024
Replies
1
Views
186
Mar 11, 2024
Dr.Peterson
S
help determining co-ordinates of offset points on a curve: need to find y dimension between flat horizontal and curved profile
Sparky2008
Mar 9, 2024
Replies
1
Views
175
Mar 11, 2024
Dr.Peterson
A
Help w/: How to find height, width and height from sidefaces on box in shape of rectangular prism
atrick
Mar 10, 2024
Replies
2
Views
149
Mar 11, 2024
Dr.Peterson
N
Please help: "The base of the pyramid is a square with a side length of 2√3, and the height of the pyramid is 3cm, with its apex..."
NNikola
Mar 6, 2024
Replies
7
Views
258
Mar 9, 2024
Leonie17
L
Y
Area of plane figures: Find the angle of a sector whose arc length s 22cm and the area is 44cm
yinkus
Mar 5, 2024
Replies
4
Views
204
Mar 6, 2024
The Highlander
J
Find the value of x-y of the given shape ("In the diagram, CD = CE = 30 and F is the midpoint of CE....")
John Ode
Mar 4, 2024
Replies
4
Views
230
Mar 5, 2024
John Ode
J
L
Please explain me to understand solution: A ship starts at point A and sails 5 km on a bearing of 135 degrees to point B.
Laia
Feb 29, 2024
Replies
2
Views
130
Mar 4, 2024
eipi45
E
M
Trying to find Sylvester's triangle problem proof
MathNugget
Mar 3, 2024
Replies
0
Views
160
Mar 3, 2024
MathNugget
M
L
Cuboid volume: Cuboid 8x9x9 has cuboid 3x6x6 cut out of it.
Laia
Feb 29, 2024
Replies
10
Views
329
Mar 2, 2024
khansaheb
K
L
Please explain me to understand the solution: Horizontal garden ABCD (trapezium) with AB parallel to DC
Laia
Feb 29, 2024
Replies
10
Views
292
Feb 29, 2024
Laia
L
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