Pearson Geometry Common Core, 2011
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Pearson Geometry Common Core, 2011 View details
Mid-Chapter Quiz
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Exercise 1 Page 788

If two tangent segments to a circle share a common endpoint outside the circle, then the two segments are congruent.

76 cm

Practice makes perfect
If two segments tangent to a circle share a common endpoint outside the circle, then the two segments are congruent. Using this fact, we can find the unknown lengths in the given diagram.

Finally, we can find the perimeter of the circumscribed triangle by adding all the side lengths. P= 9+ 9+ 16+ 16+ 13+ 13=76 cm