Classifying Triangles

Front

What is a scalene triangle?

Back

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

Front

What is an equilateral triangle?

Back

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

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length and the angles opposite those sides are equal.

Front

What is a right triangle?

Back

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

Front

What is an obtuse triangle?

Back

An obtuse triangle is a triangle that has one angle measuring more than 90 degrees.

Front

How can you identify a scalene triangle?

Back

A scalene triangle can be identified by checking that all three sides are of different lengths.

Front

How can you identify an isosceles triangle?

Back

An isosceles triangle can be identified by checking if at least two sides are of equal length.

Front

How can you identify an equilateral triangle?

Back

An equilateral triangle can be identified by checking if all three sides are of equal length.

Front

What is the sum of the angles in any triangle?

Back

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

Front

What is the difference between acute and obtuse triangles?

Back

An acute triangle has all angles less than 90 degrees, while an obtuse triangle has one angle greater than 90 degrees.