Figure NOT drawn to scale

In the above diagram, evaluate .

Figure NOT drawn to scale

In the figure above, evaluate .

Figure NOT drawn to scale

In the above diagram, evaluate .

In the above figure, is a tangent to the circle.

Evaluate .

In the above figure, is a tangent to the circle.

Evaluate .

Figure NOT drawn to scale

In the above figure, is a tangent to the circle.

Evaluate .

Which equation is the formula for chord length?

Note: is the radius of the circle, and is the angle cut by the chord.

The radius of a circle is , and the perpendicular distance from a chord to the circle center is . Give the chord length.

Give the length of the chord of a central angle of a circle with radius 20.

A central angle of a circle intercepts an arc of length ; it also has a chord. What is the length of that chord?