Lesson 34 Vocabulary

An acute triangle is a triangle where:

• all angles are less than 90 degrees

• one angle is exactly 90 degrees

• one angle is greater than 90 degrees

• all angles are equal

An equilateral triangle is a triangle in which:

• all sides are equal

• all angles are different

• two sides are equal

• one angle is 90 degrees

An isosceles triangle is a triangle with:

• three equal sides

• two equal sides

• no equal sides

• all sides different

Tags

CCSS.4.G.A.2

An obtuse triangle is a triangle that has:

• all angles less than 90 degrees

• one angle greater than 90 degrees

• all angles equal to 90 degrees

• one angle equal to 90 degrees

Tags

CCSS.4.G.A.2

A polygon is:

• a closed figure with three or more sides

• a type of circle

• a line segment

• an open figure with two sides

Tags

CCSS.2.G.A.1

A right triangle is a triangle in which one angle is:

• 90 degrees

• 45 degrees

• 60 degrees

• 30 degrees

Tags

CCSS.4.G.A.2

A scalene triangle is a triangle in which:

• all sides are equal

• two sides are equal

• all sides are different

• it has a right angle

Tags

CCSS.4.G.A.2

A line of symmetry is:

• a line that divides a figure into two identical parts

• a line that is parallel to the base of a triangle

• a line that intersects a circle at two points

• a line that is perpendicular to the x-axis

• acute

• obtuse

• right

Tags

CCSS.4.G.A.2

How many lines of symmetry does this shape have?

• 2
• 4
• 6
• 8

Tags

CCSS.4.G.A.3