CH 4 vocab Flashcards

1
Q

What is the triangle sum conjecture?

A

The sum of the measures of the angles in every triangle is 180 degrees.

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2
Q

what is a vertex angle?

A

The angle between the two congruent sides

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3
Q

What is a base angle?

A

the non-congruent side adjacent to the base angles

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4
Q

what are the legs in a triangle?

A

the two congruent sides of a triangle

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5
Q

what does the isosceles triangle conjecture state?

A

If a triangle is isosceles, then its base angles are congruent.

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6
Q

What is the converse of the isosceles triangle conjecture?

A

If a triangle has two congruent angles, then it is an isosceles triangle

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7
Q

What is the equilateral/equiangular triangle conjecture?

A

Every equilateral triangle is equiangular, and conversely, every equiangular triangle is equilateral

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8
Q

What is the triangle inequality conjecture?

A

The sum of the lengths of any two sides of a triangle is greater than the length of the third side

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9
Q

What is the Side Angle Inequality conjecture?

A

In a triangle, if one side is longer than another side, then the angle opposite the longer side is larger than the angle opposite the shorter side.

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10
Q

What is the Triangle Exterior Angle Conjecture?

A

The measure of an exterior angle of a triangle is equal to the sum of the measures of the remote interior angles.

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11
Q

What are corresponding parts in a triangle?

A

Parts of triangles that match up with each other.

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12
Q

what is a base?

A

the non-congruent side adjacent to the base angles

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13
Q

what is a remote interior angle?

A

two angles in the triangle htat do not share a vertex with the exterior angle

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14
Q

what is an adjacent interior angle?

A

The angle adjacent to the exteiror angle

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15
Q

what is CPCTC?

A

Corresponding Parts of Congruent Triangles are Congruent

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16
Q

what is the vertex angle bisector conjecture?

A

In an isosceles triangle, the bisector of the vertex is also the altitude and the median to the base.