Unit 8 and 9 Vocabulary Review

What type of angle measures LESS than 90 degrees?

• acute angle

• right angle

• obtuse angle

• straight angle

____________ means having exactly the same size and same shape (of equal measure)

• obtuse angle

• area

• polygon

• congruent

What polygon has 3 sides and 3 vertices?

• straight angle

• polygon

• triangle

• perimeter

This is a linear measurement of the distance AROUND the OUTER edge of a figure: ___________

• Area

• Perimeter

• parallel lines

• polygon

What is the measurement attribute that describes the number of square units a figure or region COVERS?

• area

• perimeter

• perpendicular lines

• triangle

What type of lines NEVER intersect and are always the same distance apart?

• straight angle

• perpendicular lines

• perimeter

• parallel lines

What type of lines intersect at right angles to form square corners?

• perimeter

• perpendicular lines

• parallel lines

• straight angle

This is a line dividing an image into 2 congruent parts that are mirror images of each other: ________________

• straight angle

• perpendicular lines

• parallel lines

• line of symmetry

What type of angle measures GREATER than 90 degrees but less than 180 degrees?

• Obtuse angle

• Acute angle

• Right angle

• Straight angle

What is a CLOSED figure with at least 3 sides, where all sides are straight (no curves)?

• congruent

• right angle

• polygon

• area