rove the Pythagorean identity.
Drag and drop the correct expression or equation into the boxes to complete the proof.
The equation of any circle whose center is the origin and whose radius is 1 is ..... The unit circle is such a circle. When an angle θθ is drawn in standard position on the unit circle, the x-coordinate of any point on the unit circle is ..... area. The y-coordinate of any point on the unit circle is ....... area. Substituting these values into the equation of a circle yields ..... area.