Properties of Triangles
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High School Geometry
High School Geometry
Math

 Name _____________________________ Date ___________________ (Key 1 - Answer ID # 0245446)
1.

Which of the following statements is NOT correct?
 In an isosceles triangle, the altitude to the base bisects the base and the vertex angle. The circumcenter of a triangle is always inside the triangle. The shortest distance from a vertex to the opposite side is the altitude to that side. An equilateral triangle is also an equiangular triangle.

2.

and bisect ADE and CED respectively. If mCED = 117 and mDFE = 65, find mABF.

3.

and are angle bisectors. If mA = 62, find the measure of BPC.

4.

In ABC, and bisects BAC, mB = 76, and mC = 30. Find mDAE.

5.

You want to prove that the perpendicular bisector of the base of an isosceles triangle is also the angle bisector of the vertex. Which postulate can NOT be used in your proof?
 SSA SSS SAS HL

6.

X is a point inside triangle ABC. If X is equidistant from and , then X must lie on the ______.
 median of C perpendicular bisector of bisector of C altitude to side

Properties of Triangles
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