Triangle Flashcard

Front

What is the Triangle Sum Theorem?

Back

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

Front

What do you call an angle that measures exactly 90 degrees?

Back

Right angle.

Front

If one angle of a triangle is 34° and another is 101°, what is the measure of the third angle?

Back

45°.

Front

What is the measure of each angle in a triangle if one angle is 50° and another is 48°?

Back

The third angle measures 82°.

Front

What type of angle measures less than 90 degrees?

Back

Acute angle.

Front

What type of angle measures more than 90 degrees but less than 180 degrees?

Back

Obtuse angle.

Front

If a triangle has angles measuring 60°, 60°, and 60°, what type of triangle is it?

Back

Equilateral triangle.

Front

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

Back

180°.

Front

If one angle of a triangle is 95°, what can you say about the other two angles?

Back

They must sum to 85° and both must be acute.

Front

What is the measure of an angle that is complementary to a 35° angle?

Back

55°.