Building Blocks
Elementary My dear
Lines, Lines and more Lines
More than meets the eye
3 is a magic number
100

A location

What is a point?

100

An example that proves a statement false

What is a counterexample?

100
Two lines that intersect to form a right angle.

What are perpendicular lines?

100

A ___________ moves every point in a figure the same distance in the same direction.

What is a translation?

100

If two angles in a triangle are congruent to two angles in another triangle, then the third angles are _______.

What is congruent?

200

A point that divides a segment into two congruent parts

What is a midpoint??

200

A statement that can be proven

What is a theorem?

200

Two lines that are in the same plane but never intersect.

What are parallel lines?

200

A transformation that uses a line like a mirror to reflect a figure.

What is a reflection?

200

An triangle with three congruent sides.

What is an equilateral triangle?

300

An angle whose measure is greater than 90 degrees and less than 180

What is an obtuse angle?

300

A logical argument that uses deductive reasoning to show a statement is true

What is a proof?

300

A line that intersects two or more lines.

What is a transversal?

300

A quantity that has both direction and magnitude.

What is a vector?

300

A triangle that has two or more congruent sides.

What is an isosceles triangle?

400

A pair of angles whose sum of their measures equals 90 degrees.

What are complementary angles?

400

A rule that is accepted without proof

What is a postulate?

400

If two parallel lines are cut by a transversal, then the alternate interior angles are ____________.

What is congruent?

400

The new figure in a transformation.

What is the image?

400

The side opposite the right angle in a right triangle

What is the hypotenuse?

500

A pair of angles whose noxconngruent sides are opposite rays and are supplementary.

What is a linear pair?

500

A geometric drawing that uses a limited set of tools.  Usually a compass or a straight edge.

What is a construction?

500

If two parallel lines are cut by a transversal, then the consecutive interior angles are _______________.

What is supplementary?

500

A transformation that preserves both length and angle measure.

What is a ridged motion?

500

The triangle congruency theorems are SSS, SAS, ASA, AAS and ______________.

What is HL?