Classifying Triangles

What is a triangle?

• A circle with three sides

• A polygon with three edges and three vertices

• A type of fruit

• A square with three corners

Tags

CCSS.2.G.A.1

How many sides does a triangle have?

• 3

• 6

• 8

• 4

Tags

CCSS.2.G.A.1

What is an equilateral triangle?

• A triangle with all three sides of equal length

• A triangle with all three sides of different lengths

• A triangle with one acute angle

• A triangle with two sides of equal length

Tags

CCSS.4.G.A.2

What is an isosceles triangle?

• A triangle with all sides of different lengths

• A triangle with no equal angles

• A triangle with all sides of equal length

• A triangle with two sides of equal length

Tags

CCSS.4.G.A.2

What is a scalene triangle?

• A triangle with one right angle

• A triangle with all sides equal

• A triangle with two equal sides

• A triangle with no equal sides

Tags

CCSS.4.G.A.2

How are triangles classified based on their angles?

• Acute, right, or obtuse

• Small, medium, or large

• Red, blue, or green

• Happy, sad, or angry

Tags

CCSS.4.G.A.2

What is an acute-angled triangle?

• A triangle with all three angles equal to 90 degrees

• A triangle with one angle greater than 90 degrees

• A triangle in which all three angles are less than 90 degrees.

• A triangle with one angle equal to 180 degrees

Tags

CCSS.4.G.A.2

What is an obtuse-angled triangle?

• A triangle with all angles equal to 90 degrees

• A triangle with one angle greater than 90 degrees

• A triangle with all angles less than 90 degrees

• A triangle with no angles greater than 90 degrees

Tags

CCSS.4.G.A.2

What is a right-angled triangle?

• A triangle with one angle measuring 90 degrees.

• A triangle with all angles measuring 60 degrees.

• A triangle with no right angles.

• A triangle with one angle measuring 180 degrees.

Tags

CCSS.4.G.A.2

Can a triangle have more than one classification?

• Yes

• No

• Only if it's equilateral

• Only if it's isosceles

Tags

CCSS.4.G.A.2