Geometry/trig help - having trouble finding an angle
52122
Find an angle of an isosceles triangle
89561
Find the sum of angles without trigonometry?
104410
Why do we omit the negative sign when finding basic angle when solving trigonometric equations?
25068
Subtracting Geometry?
150284
Problem about angle in isosceles triangle
126904
math.sin incorrect result
56151
Mental estimate for tangent of an angle (from $0$ to $90$ degrees)
89003
Finding a trigonometric polynomial
148963
The Ellipse Problem - finding an ellipse inside a triangle
118723
Finding the tangents common to two rotated ellipses?
130470
Find the angle ADE of the given triangle.
77435
Analytic solution for angle of minimum deviation?
59791
Determine the exact value of equations involving more two trig variables
90561
Angle required to hit the target in projectile motion
155459
How to find out the solid angle subtended by a tetrahedron at its vertex?
95979
Trigonometry and algebra question
77810
Solving Trigonometric Derivatives