Triangle Sum Theorem

Front

What is the Triangle Sum Theorem?

Back

The Triangle Sum Theorem states that the sum of the interior angles of a triangle is always 180 degrees.

Front

What are the three types of triangles based on their sides?

Back

1. Equilateral: All sides are equal. 2. Isosceles: Two sides are equal. 3. Scalene: All sides are different.

Front

What type of triangle has one angle greater than 90 degrees?

Back

An obtuse triangle.

Front

What type of triangle has one angle equal to 90 degrees?

Back

A right triangle.

Front

What is the longest side of a right triangle called?

Back

The hypotenuse.

Front

If a triangle has two equal sides, what type of triangle is it?

Back

It is an isosceles triangle.

Front

What is the relationship between the angles in a triangle?

Back

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

Front

Can a triangle have two obtuse angles?

Back

No, a triangle cannot have two obtuse angles because the sum of the angles would exceed 180 degrees.

Front

What is the Pythagorean Theorem?

Back

In a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides (a² + b² = c²).

Front

What is an equilateral triangle?

Back

A triangle where all three sides and all three angles are equal (each angle is 60 degrees).