### Home > INT2 > Chapter Ch12 > Lesson 12.2.2 > Problem 12-83

12-83.

In a circle, chord *AB* has length 10 units, while *m* = 60°. What is the area of the circle? Draw a diagram and show all work. Homework Help ✎

Create a midpoint for the *AB* called *D*.

Triangle *ACD* is a 30°-60°-90° triangle. With this knowledge, you can find the radius to find the area.

Consider the center of the circle as point *C*. Connect *D*, *C*, and *A*.

*r* = 10 units