3.1 Classifying Triangles

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle in which all three sides are of different lengths.

Tags

CCSS.4.G.A.2

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length.

Tags

CCSS.4.G.A.2

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle in which all three sides are of equal length.

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 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 obtuse triangle?

Back

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

Tags

CCSS.4.G.A.2

Front

How can you identify a scalene triangle?

Back

A scalene triangle can be identified by having all sides of different lengths.

Tags

CCSS.2.G.A.1

Front

How can you identify an isosceles triangle?

Back

An isosceles triangle can be identified by having at least two sides of equal length.

Tags

CCSS.2.G.A.1

Front

How can you identify an equilateral triangle?

Back

An equilateral triangle can be identified by having all three sides of equal length.

Tags

CCSS.2.G.A.1

Front

What is the sum of the angles in any triangle?

Back

The sum of the angles in any triangle is always 180°.

Tags

CCSS.8.G.A.5