Classifying Triangles (sides and angles)

Front

What is an equilateral triangle?

Back

A triangle with all three sides of equal length and all three angles measuring 60 degrees.

Tags

CCSS.4.G.A.2

Front

What is an isosceles triangle?

Back

A triangle with at least two sides of equal length and the angles opposite those sides are equal.

Tags

CCSS.4.G.A.2

Front

What is a scalene triangle?

Back

A triangle with all sides of different lengths and all angles of different measures.

Tags

CCSS.4.G.A.2

Front

What is an acute triangle?

Back

A triangle where all three angles are less than 90 degrees.

Tags

CCSS.4.G.A.2

Front

What is a right triangle?

Back

A triangle that has one angle measuring exactly 90 degrees.

Tags

CCSS.4.G.A.2

Front

What is an obtuse triangle?

Back

A triangle that has one angle measuring more than 90 degrees.

Tags

CCSS.4.G.A.2

Front

How can you identify an isosceles triangle?

Back

Look for at least two sides that are the same length.

Tags

CCSS.2.G.A.1

Front

How can you identify a scalene triangle?

Back

Check if all three sides are of different lengths.

Tags

CCSS.4.G.A.2

Front

What is the sum of the angles in any triangle?

Back

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

Tags

CCSS.8.G.A.5

Front

What type of triangle has one right angle?

Back

A right triangle.

Tags

CCSS.4.G.A.2