UNIT 4 Test Geometry 11.07.24

Front

What is the sum of the angles in a triangle?

Back

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

Front

If one angle of a triangle is 34 degrees and another is 101 degrees, how do you find the third angle?

Back

Subtract the sum of the known angles from 180 degrees: 180 - (34 + 101) = 45 degrees.

Front

What is the definition of congruent angles?

Back

Congruent angles are angles that have the same measure.

Front

How do you determine if two triangles are congruent?

Back

Two triangles are congruent if their corresponding sides and angles are equal.

Front

What is the formula for finding the length of a side in a right triangle using the Pythagorean theorem?

Back

a² + b² = c², where c is the hypotenuse.

Front

What is the definition of an exterior angle of a triangle?

Back

An exterior angle is equal to the sum of the two opposite interior angles.

Front

What is the relationship between the angles in a linear pair?

Back

Angles in a linear pair are supplementary, meaning they add up to 180 degrees.

Front

What is the definition of complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

How do you find the measure of an unknown angle if you know the other two angles in a triangle?

Back

Subtract the sum of the known angles from 180 degrees.

Front

What is the definition of vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect, and they are always equal.