Classify Triangle 5.G.3-4

Front

What is an acute triangle?

Back

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

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle where all three sides are equal in length and all three angles are equal, each measuring 60 degrees.

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle measuring exactly 90 degrees.

Front

What is an obtuse triangle?

Back

An obtuse triangle is a triangle where one angle is greater than 90 degrees.

Front

What is an isosceles triangle?

Back

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

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle where all three sides are of different lengths and all three angles are different.

Front

How can you identify an acute triangle?

Back

You can identify an acute triangle by measuring its angles; if all angles are less than 90 degrees, it is acute.

Front

How can you identify an equilateral triangle?

Back

You can identify an equilateral triangle by checking if all three sides are equal and all angles are 60 degrees.

Front

How can you identify a right triangle?

Back

You can identify a right triangle by checking if one of its angles is exactly 90 degrees.

Front

How can you identify an obtuse triangle?

Back

You can identify an obtuse triangle by measuring its angles; if one angle is greater than 90 degrees, it is obtuse.