Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
Y
Prove that the longest line segment in a triangle is on the sides.
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8
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3K
Dr.Peterson
Dr.Peterson
L
Find all values of theta in the interval [0 degrees,360 degrees)that satisfy the equa
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2
Views
680
Dr.Peterson
Dr.Peterson
S
Help please: Find the general solution of the equation: sin theta = cos 8 theta, then
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2
Views
801
Sand
S
S
Trigonometry: If 13 sin x = 5 where x is the greatest positive angle, then find ...
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2
Views
882
Sand
S
B
congruence triangle problem
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4
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1K
Dr.Peterson
Dr.Peterson
P
Is an angle equal to the lenght of one side of triangle where the altitude is situate
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7
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1K
Dr.Peterson
Dr.Peterson
G
Bulk Density and Spherical Packing (need to increase weight of fixed-volume cylinder)
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10
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3K
JeffM
J
A
Cylinders A has r=2, contains 40pi water to height h=10. Cylinder B, r=5, is empty.
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7
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3K
Dr.Peterson
Dr.Peterson
W
Calculating radius of cone - Only area of 123081 and volume of 2462940 are given
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3
Views
1K
Ward
W
S
Circles: Three circles fit inside rectangle as shown....
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13
Views
4K
yma16
Y
A
Rectangle, 16cm by 6cm, is inside Semicircle... Find shaded area.
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6
Views
6K
Steven G
Steven G
S
Similar Shapes and Ratio: Jim makes two sizes of bins with similar shapes...
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2
Views
1K
tkhunny
tkhunny
N
Exterior angle Theorem (need a full recap of how this theorem works.)
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3
Views
1K
stapel
stapel
T
How to calculate complicated variations? Vertical & Horizontal Distances.
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2
Views
1K
stapel
stapel
S
Cylinder Volumes: Cylinder A has radius 2cm, contains 40pi cm^3 water to height 10cm.
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1
Views
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
938
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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3K
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
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