Classifying Triangles

Front

What is a triangle classified by its sides?

Back

A triangle can be classified as scalene (no sides are equal), isosceles (two sides are equal), or equilateral (all sides are equal).

Tags

CCSS.4.G.A.2

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle that has no congruent sides.

Tags

CCSS.4.G.A.2

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two congruent sides.

Tags

CCSS.4.G.A.2

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle where all three sides are congruent.

Tags

CCSS.4.G.A.2

Front

What is a triangle classified by its angles?

Back

A triangle can be classified as acute (all angles are less than 90°), obtuse (one angle is greater than 90°), or right (one angle is exactly 90°).

Tags

CCSS.4.G.A.2

Front

What is an acute triangle?

Back

An acute triangle is a triangle where all three angles are less than 90°.

Tags

CCSS.4.G.A.2

Front

What is an obtuse triangle?

Back

An obtuse triangle is a triangle that has one angle greater than 90°.

Tags

CCSS.4.G.A.2

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle equal to 90°.

Tags

CCSS.4.G.A.2

Front

What is an equiangular triangle?

Back

An equiangular triangle is a triangle where all three angles are equal.

Tags

CCSS.4.G.A.2

Front

How can you identify a scalene triangle?

Back

A scalene triangle can be identified by having no sides of equal length.

Tags

CCSS.2.G.A.1