Triangle angle sum theorem

Front

What does the Triangle Sum Theorem state?

Back

The Triangle Sum Theorem states that the sum of all angles in a triangle is 180°.

Front

What is the measure of each angle in a triangle if one angle is 90° and the other is 45°?

Back

The measure of the third angle is 45°.

Front

What type of angle measures exactly 90 degrees?

Back

Right angle.

Front

If one angle in a triangle measures 60°, what is the sum of the other two angles?

Back

The sum of the other two angles is 120°.

Front

What is the measure of an acute angle?

Back

An acute angle measures less than 90°.

Front

What is the measure of an obtuse angle?

Back

An obtuse angle measures more than 90° but less than 180°.

Front

If a triangle has angles measuring 30° and 60°, what is the measure of the third angle?

Back

The third angle measures 90°.

Front

In a triangle, if one angle is 70° and another is 50°, what is the measure of the third angle?

Back

The third angle measures 60°.

Front

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

Back

The sum of the interior angles of a triangle is 180°.

Front

If two angles of a triangle are equal, what type of triangle is it?

Back

It is an isosceles triangle.