Solve the equation \(5\cos (6x - 20)^\circ + 3 = 7.25\), for \(0 \le x \le 180\).

Narrator: Geometry is how Math’s measures and describes the world ... Here’s a rule you probably know: that a shape with 4 right angles and 4 equal sides is a square! What’s an angle again?

Each side of the Great Pyramid rises at an angle of 51.5 degrees to the top. Not only that, each of the sides are aligned almost exactly with true north, south, east, and west. For a pyramid to ...