Inscribed Circle of a Triangle

Name the construction pictured

• Inscribed circle about a nonagon

• Inscribed hexagon

• Inscribed circle about a triangle

• Circumscribed obtuse triangle

Name the construction.

• circumscribed triangle

• equilateral triangle inscribed in a circle

• inscribed scalene triangle

• inscribed hexagon

When you draw the angle bisectors of a triangle it creates the point of concurrency called the _____________.

• Centroid

• Incenter

• Circumcenter

• Orthocenter

In order to construct the incenter of a triangle, you must construct ________________________.

• the perpendicular bisectors of two sides of the triangle

• the angle bisectors of two angles of the triangle

• the midpoints of all three sides of the triangle

• lines parallel to two sides of the triangle that pass through the vertices opposite those sides

• 12

• 53

• 96

• 90

Find the value of the angle marked x....

• 90

• 45

• 50

• 100

• A
• B
• C
• D

The set of all points in a plane that are the same distance from a point called the center.

• Triangle

• Quadrilateral

• Decahedron

• Circle