AC 2C Review

Front

What is an alternate interior angle?

Back

An alternate interior angle is an angle that is formed on opposite sides of a transversal line that intersects two parallel lines, and is located between those two lines.

Front

If angle 3 is 60°, what is the measure of alternate interior angle 5?

Back

Angle 5 is also 60° because alternate interior angles are equal when two parallel lines are cut by a transversal.

Front

What does the Triangle Sum Theorem state?

Back

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

Front

If one angle of a triangle is 90° and another is 45°, what is the measure of the third angle?

Back

The third angle is 45° because 90° + 45° + 45° = 180°.

Front

How do you translate a point in a coordinate plane?

Back

To translate a point, you add the translation values to the x and y coordinates of the point.

Front

What is the result of translating the point (1, 2) by -3 units horizontally and -9 units vertically?

Back

The new point is (-2, -7) because you subtract 3 from 1 and 9 from 2.

Front

What is the definition of a missing angle in geometry?

Back

A missing angle is an angle whose measure is not known and can be found using the properties of angles, such as the Triangle Sum Theorem.

Front

If two angles are supplementary, what is the sum of their measures?

Back

The sum of supplementary angles is 180°.

Front

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

Back

The measure of the complementary angle is 55° because 90° - 35° = 55°.

Front

What is the formula for finding the sum of angles in a polygon?

Back

The sum of the interior angles of a polygon can be found using the formula (n - 2) × 180°, where n is the number of sides.