An Inscribed Circle

Strategies and Hints

  1. Segment DO. It has a measure of 7.

  2. The theorem can be used to locate the points of tangency on sides and . It is 7 units from D to the point where is tangent to the circle. Once the tangent points are located on and , the length of is found by adding 2 and 2.

Solution

The measure of is 4.

 

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