Module 1.1 Review and Preview Vocab

Define Midpoint.

• A ray that divides an angle into two angles that both have the same measure.

• The common endpoint of two rays.

• Points that lie on the same line.

• The point that divides the segment into two segments that have the same length.

Tags

CCSS.HSG.GPE.B.6

Define angle.

• The common endpoint of two rays that form an angle.

• A geometric figure formed when two lines meet at a shared point called the vertex. It is measured using degrees.

• Points that lie on the same line.

• A change in the position, size, or shape of a figure or graph.

Define transformation.

• An angle that measure greater than 0 degrees but less than 90 degrees.

• Points that lie on the same line.

• A change in the position, size, or shape of a figure or graph.

• A statement that is accepted as true without proof.

Tags

CCSS.HSG.CO.A.2

Define complementary angles.

• Two angles whose measures have a sum of 90 degrees.

• Two angles whose measures have a sum of 180 degrees.

• Angles that share a common vertex and a common side.

• Points that lie on the same line.

Tags

CCSS.7.G.B.5

Define supplementary angles.

• Two angles whose measures have a sum of 90 degrees.

• Angles that share a common endpoint and a common side.

• Two angles whose measures have a sum of 180 degrees.

• A ray that divides an angle into two angles that both have the same measure.

Tags

CCSS.7.G.B.5

Define acute angle.

• An angle whose measure is greater than 180 degrees.

• An angle whose measure is equal to 90 degrees.

• Angles whose measures have a sum of 180 degrees.

• An angle whose measure is greater than 0 degrees but less than 90 degrees.

Tags

CCSS.4.G.A.1

Define obtuse angle.

• An angle whose measure is equal to 90 degrees.

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

• An angle whose measure is greater than 0 degrees but less than 90 degrees.

• An angle that is congruent to another coplanar angle.

Tags

CCSS.4.G.A.1

Define angle bisector.

• A ray that divides an angle into two congruent angles.

• A flat surface that has no thickness and extends forever in all directions.

• A portion of a line that starts at a point (the endpoint) and continues forever in one direction.

• An angle whose measure is equal to 90 degrees.

Tags

CCSS.HSG.CO.A.1

Define vertex of an angle.

• The common endpoint of the sides of the angle.

• An angle formed by the legs of a triangle.

• The intersection of two sides of a triangle.

• Points that lie on the same line.

Define collinear.

• The common endpoint of the sides of the angle.

• Points that lie on the same line.

• Points that lie in the same plane.

• A statement that is accepted as true without proof.

Tags

CCSS.HSG.CO.A.1