Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
D
Find sin² 1° + sin² 2° + sin² 3° +..... sin² 89°, tg 1° ⋅ tg 2° ⋅ tg 3° ⋅ .... ⋅ tg 8
Replies
2
Views
2K
stapel
stapel
W
Calculating tension/friction forces in a model
Replies
3
Views
1K
bboyson
B
S
Intersection points of circle and line when the line is parallel to y
Replies
3
Views
2K
mmm4444bot
mmm4444bot
A
How to draw the same sector in a circle in perspective
Replies
0
Views
845
artovbaz
A
F
Trigonometric Problem Solving (True bearings)
Replies
1
Views
953
stapel
stapel
V
Help with solving tasks: (ctg a + tg a)/(1 + tg a) * cos a = 3/5
Replies
1
Views
1K
ksdhart2
K
C
ACT review: The length of a rectangle is 3 times the length of a smaller rectangle.
Replies
3
Views
3K
stapel
stapel
S
Chord Radius Degree calc: radius is known, AB is also known
Replies
3
Views
1K
Snupple
S
T
Help Me Solve this Triangle Please! Length of BE of triangle with point ABE
Replies
2
Views
1K
tbamrah
T
E
Need help w/: Let point M be outside parallelogram ABCD s.t. angle MAB = angle MCB
Replies
0
Views
2K
ebwoolf96
E
L
Need help for: Triangle ACE is right. AB=AF; BC=CD. Find the area of the triangle.
Replies
0
Views
980
Laura19981126
L
S
Something is not right with calculating the area of these shapes
Replies
0
Views
840
Seabottom
S
F
Solve for solutions over the interval [0,360)
Replies
1
Views
789
ksdhart2
K
J
Help me out here please!
Replies
4
Views
1K
jujuchub
J
T
How to best place a rectangular slot in an ovoid sector?
Replies
0
Views
852
Thailandian
T
X
Proofing for the surface area of a sphere
Replies
1
Views
1K
ksdhart2
K
A
euclidean geometry: Draw a parallelogram ABCD and the height DH relative to AB.
Replies
3
Views
2K
Alfredo
A
R
Arc length between two points on a cylinder
Replies
2
Views
2K
rww88
R
T
Solve for sides of a triangle
Replies
2
Views
928
stapel
stapel
W
Derivation formula for b(x)
Replies
1
Views
843
Westerwolde
W
You must log in or register to post here.
Top