Types of Triangles

Front

What are the three main types of triangles based on side lengths?

Back

Equilateral, Isosceles, Scalene.

Front

What defines an equilateral triangle?

Back

An equilateral triangle has all three sides of equal length and all three angles equal to 60 degrees.

Front

What is an isosceles triangle?

Back

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

Front

What characterizes a scalene triangle?

Back

A scalene triangle has all sides of different lengths and all angles of different measures.

Front

What is a right triangle?

Back

A right triangle has one angle that measures exactly 90 degrees.

Front

What is a right isosceles triangle?

Back

A right isosceles triangle has one right angle and two sides of equal length.

Front

How can you identify an equilateral triangle?

Back

An equilateral triangle can be identified by its three equal sides and three equal angles.

Front

What is the sum of the interior angles of any triangle?

Back

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

Front

What is the Pythagorean theorem?

Back

The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides.

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.