Download Lesson 5

Geometry
Lesson 5-3 WS
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For #1-2, find the coordinates of the circumcenter of the triangle.
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For #4-5, name the incenter of the triangles.
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For #6-7, find the value of x.
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For #10-13, determine if the statement is true or false.
10. The incenter of a triangle is equidistant from all three vertices of the triangle.
11. The incenter of a triangle always lies inside the triangle.
12. You can circumscribe a circle about any three points in a plane.
13. If point C is the circumcenter of PQR and the circumcenter of PQS , then R and S must
be the same point.
For #14-16, circle the letter of the best answer.
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17. Construct the circumscribed circle of the triangle below.
18. Draw the inscribed circle of the triangle below.