special triangles (FLASHCARD)

Front

What is a special triangle?

Back

A special triangle is a triangle that has specific properties, such as the equilateral triangle (all sides and angles are equal), isosceles triangle (two sides are equal), and right triangle (one angle is 90 degrees).

Front

What is the Pythagorean theorem?

Back

Front

What is the value of the angles in an equilateral triangle?

Back

In an equilateral triangle, all three angles are equal and each measures 60 degrees.

Front

What is the value of the angles in an isosceles triangle?

Back

In an isosceles triangle, the angles opposite the equal sides are equal, and the sum of all angles is 180 degrees.

Front

What is the relationship between the sides of a 30-60-90 triangle?

Back

Front

What is the relationship between the sides of a 45-45-90 triangle?

Back

Front

What is the area formula for a triangle?

Back

Front

What is the definition of a right triangle?

Back

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

Front

What is the definition of an isosceles triangle?

Back

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

Front

What is the definition of 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 to 60 degrees.