Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
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Similar Shapes and Ratio: Jim makes two sizes of bins with similar shapes...
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2
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1K
tkhunny
tkhunny
N
Exterior angle Theorem (need a full recap of how this theorem works.)
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3
Views
989
stapel
stapel
T
How to calculate complicated variations? Vertical & Horizontal Distances.
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2
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1K
stapel
stapel
S
Cylinder Volumes: Cylinder A has radius 2cm, contains 40pi cm^3 water to height 10cm.
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1
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1K
tkhunny
tkhunny
P
Prove tan a = 2 in isos. triangle w/ P(-2,0), Q(2,8), R, base angle "a"
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3
Views
896
pitaya
P
R
Geometric Name of Object - Rectangular Pyramid
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1
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1K
Dr.Peterson
Dr.Peterson
D
Enlarge Triangle: do I need to center that triangle at the origin to enlarge it?
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10
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2K
Dr.Peterson
Dr.Peterson
eddy2017
The area of a garden, given perimeter is 50 feet, width is 7 feet
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8
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3K
eddy2017
eddy2017
H
Geometry problem
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5
Views
1K
Steven G
Steven G
T
How to solve for a in r = xsin(a) + ysin(a+b) + zsin(a+b+c); x,y,z,b,c are constant?
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1
Views
659
sinx
S
G
In Triangle ABC, internal bisector of ∠ABC, external bisector of ∠ACB meet at P.
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6
Views
2K
Dr.Peterson
Dr.Peterson
A
Question: Two equation of two unknown angles (Hint: cos^2(theta_4)+sin^2(theta_4)=1)
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6
Views
2K
Deleted member 4993
D
S
Trig: Show cos(x) + cos(x + θ) = A cos(x + φ), where φ = θ/2 and A = 2 cos(θ/2)
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1
Views
696
Dr.Peterson
Dr.Peterson
D
Finding unknown value: rt triangle w/ pts (x, x + 1), (x + 2, x + 3), (x + 3, 2x + 4)
Replies
9
Views
1K
Dr.Peterson
Dr.Peterson
C
Skew lines in box
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3
Views
1K
stapel
stapel
D
Find angle B in circle. Angle B rests on inner side of outer line of circle.
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6
Views
2K
DrGore
D
T
mysterious area problem
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3
Views
1K
Dr.Peterson
Dr.Peterson
E
Trigonometry...I think (angles of depression, lengths of 1 side each)
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2
Views
724
stapel
stapel
N
Geometry Trouble: Solve triangle using technique in model
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6
Views
2K
stapel
stapel
R
tangent-secant-theorem, chord-theorem, angle?
Replies
3
Views
1K
robmma82
R
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