Ch. 7 Geometry Vocab

The sum of the measures of __________ is 90 degrees.

• acute angles

• adjacent angles

• complementary angles

• supplementary angles

A(n) __________ measures between 91 degrees and 180 degrees.

• Obtuse angle
• acute angle

• straight angle

A(n) __________ is a figure with three sides and three angles.

The __________ gives the ratio that compares the measurements of the drawing or model to the measurements of the real object.

• Scale Factor

• Base

• Plane

• Scale

A three-dimensional figure with faces that are polygons is a(n) __________.

• Face

• Polyhedron

• Pyramid

• Right Angle

Sides with the same length are __________.

• congruent
• Scale

• Diagonal

• Edge

A scale written as a ratio without units in simplest form is called the __________.

• Scale factor
• Scale

• Face

• Vertex

A(n) __________ is a flat surface that goes on forever in all directions.

• Polyhedron

• Scale

• Plane

A(n) __________ has three congruent sides and three 60 degree angles.

• isosceles triangle

• acute triangle

• equilateral triangle

• obtuse triangle

Angles that have the same vertex, share a common side, and do not overlap are __________.