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Geometry and Trig
Ask your questions about all levels of geometry from elementary school through college.
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L
measuring intersection angle between circle and line with thickness
lathe1
Feb 13, 2023
Replies
4
Views
401
Feb 17, 2023
lathe1
L
N
Circular measure: A sector OAC subtended at O with radius 15 cm...
NinaLy
Feb 14, 2023
Replies
11
Views
500
Feb 15, 2023
MarkFL
B
Can’t do this problem¿ (triangle: m(angle B) = 73 degrees, side b opposite is 5 units, a = 7)
BobbyGTheMan
Feb 14, 2023
Replies
1
Views
551
Feb 14, 2023
Dr.Peterson
J
Trigonometric Ratios: resources that show the proof/reasoning behind the trig ratios?
jpanknin
Feb 14, 2023
Replies
8
Views
450
Feb 14, 2023
JeffM
J
K
How do I find the coordinates of B and D?
Kulla_9289
Feb 12, 2023
2
Replies
23
Views
836
Feb 13, 2023
stapel
E
Triangles Similarity: small triangle w/ a=alpha, s1=20, s2=v; medium triangle w/ a=alpha, s=45, s=36; and...
enji
Feb 11, 2023
Replies
4
Views
384
Feb 12, 2023
MarkFL
F
Is it possible to prove the cosine addition formula with the Cosine Law and distance formula?
Four Muffins
Feb 10, 2023
Replies
2
Views
299
Feb 10, 2023
Four Muffins
F
F
I proved the cosine subtraction formula, but I don't know why it is correct
Four Muffins
Feb 9, 2023
Replies
3
Views
474
Feb 9, 2023
Four Muffins
F
C
Find the ratio of the lengths of the chords?
chijioke
Feb 5, 2023
Replies
3
Views
775
Feb 5, 2023
Dr.Peterson
F
Can I prove sin(3t)+sin(t)=2sin(2t)cos(t) with these tools? (t=theta)
Four Muffins
Feb 3, 2023
Replies
5
Views
578
Feb 4, 2023
Steven G
C
Help!! "The two figures are congruent. Identify corresponding sides & angles."
Chioma
Feb 3, 2023
Replies
6
Views
711
Feb 4, 2023
The Highlander
4
If a circle with a circumference of 16 times pi inches is circumscribed about a square, what is the length of a diagonal of the square?
4haz
Jan 12, 2023
Replies
3
Views
543
Feb 3, 2023
MathTutorPro
M
X
How can I get sinx, given 1-cos(x)-cos(y)+sin(x)cos(y)=0, 1+cos(x)-sin(y)+sin(x)sin(y)=0
Xihe(PRC)
Feb 3, 2023
Replies
4
Views
401
Feb 3, 2023
Dr.Peterson
C
Calculate QRS. (Why is angle QRS = 131 degrees?)
chijioke
Feb 1, 2023
Replies
12
Views
1K
Feb 2, 2023
chijioke
C
C
How far is 1.5 cm chord from the center?
chijioke
Feb 1, 2023
Replies
5
Views
595
Feb 2, 2023
chijioke
C
C
How find the angle subtended by a chord at the circumference of a circle
chijioke
Jan 31, 2023
Replies
14
Views
894
Feb 1, 2023
chijioke
C
S
Solve the following word problem completely (Special Parallelograms)
supercalifragilicious007
Feb 1, 2023
Replies
1
Views
366
Feb 1, 2023
mmm4444bot
M
Gauss curvature integral: Why do we have a double integral?
Mondo
Jan 25, 2023
Replies
12
Views
727
Jan 29, 2023
Mondo
M
A
Counting Triangles with Polygons
AvgStudent
Jan 24, 2023
Replies
6
Views
398
Jan 24, 2023
AvgStudent
A
T
how many feet across is my plot of land
torie turk
Jan 21, 2023
Replies
5
Views
340
Jan 23, 2023
stapel
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