SAT Math (angle types & measurements)

Acute Angle

Measures less than 90 degrees

Right angle

measures exactly 90 degrees

Obstuse Angle

Measures more than 90 degrees but less than 180

Complementary Angles

Two angles whose measures add up to 90 degrees

Supplementary Angles

Two angles whose measures add up to 180 degrees

Supplementary Angles are:

Acute + Obtuse

Two lines intersect. What can you conclude about vertical angles?

They are always equal

Two parallel lines are cut by a transversal. Angles in the same relative position at each intersection are called:

Corresponding angles

Two parallel lines are cut by a transversal. What is true about corresponding angles?

They are equal

Which angles are on opposite sides of the transversal and inside the parallel lines?

Alternate interior

Alternate interior angles formed by parallel lines are:

Equal

Which angles are on the same side of the transversal and inside the parallel lines?

Consecutive interior angles

Consecutive interior angles formed by parallel lines have a sum of:

180°

If one consecutive interior angle is 65°, what is the other?

115°

Which of the following is a Pythagorean triple?

3, 4, 5

Which of the following is a Pythagorean triple?

6, 8, 10

Which is the smallest commonly used Pythagorean triple?

3, 4, 5

Which set is a multiple of the 3-4-5 Pythagorean triple?

6, 8, 10

Which Pythagorean triple is especially useful to memorize for the SAT?

5-12-13