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Unit 4
Vocabulary
Random
100

This formula is used to find the distance between two points on the coordinate plane. 

What is the distance formula?

100

The measure of each exterior angel of a triangle equals the sum of the measures of its two remote interior angles. 

What is exterior angle measure?

100

Capital R stands for what type of transformation?

What is rotation?

100

This type of triangle has congruent base angles.

What is isosceles triangle?

100

To divide segments or angles into two equal parts. 

What is bisect?

100

The slope of line r is 10.  The slope of line m is -1/10.  Are these lines perpendicular or parallel?

What is perpendicular? 

200

The midpoint of a line segment is the point on the segment that is equidistant from the endpoints. 

What is the midpoint formula?

200

The sum of the measures of all the angles of a triangle is 180 degrees. 

What is interior angle measures?

200

The image before the transformation takes place is called this.

What is pre-image?

200

In geometry, the property that states every angle, every line, and every figure/shape is congruent to itself.

What is the reflexive property of congruence?

200

Two opposite angles formed by intersecting lines (hint they are across from each other and congruent). 

What are vertical angles?

200

The angles which are formed inside the two parallel lines, when intersected by a transversal, are equal to its alternate pairs.

What is alternate interior angles? 

300

A conditional has a hypothesis and a conclusion.

What is a conditional statement?

300

m=(y2 - y1)/(x2 - x1


What is the slope formula?

300

Lower case r stands for what type of transformation?

What is reflection?

300

If two sides and the included angel of one triangle is congruent to two sides and the included angle of another triangle, then the two triangles are congruent. 

What is SAS?

300

A point that lies in the middle of a line segment. 

What is midpoint?

300

The slope of line k is 9/1.  The slope of line p is 9.  Are these lines perpendicular or parallel?

What is parallel?

400

If a=b and b=c, then a=c.

What is the transitive property?

400

True or False: 

Parallel lines have equal slopes.

What is true?

400

Capital T stands for what type of transformation?  This transformation is also known as sliding an image. 

What is translation?

400

If two angles and a non-included side of one triangle are congruent to two angles and a non-included side of another triangle, then the triangles are congruent. 

What is AAS?

400

Two lines that intersect at a right angle. 

What is perpendicular lines?

400

If two lines are parallel and are intersected by a transversal, then the alternate exterior angles are considered as congruent angles or angles of equal measure.

What is alternate exterior angles?

500

If a=b, then b can be substituted for a in any expression?

What is substitution property?

500

True or Fales: 

Perpendicular lines have slopes that are "opposite reciprocals".

What is true?

500

A figure after it has been transformed. 

What is image?

500
If three sides of one triangle are congruent to three sides of another triangle, then the triangles are congruent. 

What is SSS?

500

The angles which occupy the same relative position/location at each intersection where a straight line crosses two others. 

What is corresponding angles?

500

Part of a line that has a fixed starting point but no endpoint. It can extend infinitely in one direction.  

What is a ray?

600

Point B is between points A and C on segment AC if and only if AB + BC = AC.

What is segment addition postulate?

600

The opposite reciprocal of -6/7.

What is +7/6?

600

Enlargement or reduction of a figure about a fixed point that preserves angle measures, but not side lengths. 

What is dilation?

600

If the hypotenuse and a leg of one right triangle is congruent to the hypotenuse and a leg of another right triangle, then the triangles are congruent. 

What is HL?

600

A line that intersects two or more lines. 

What is transversal?

600

If two angles and the included side of one triangle are congruent to two angles and an included side of another triangle, then the triangles are congruent. 

What is ASA?