Unit 7 Practice and Review

Front

What is the formula to find the distance between two points (x1, y1) and (x2, y2)?

Back

Distance = √((x2 - x1)² + (y2 - y1)²)

Front

In a right triangle, what is the hypotenuse?

Back

The hypotenuse is the longest side of a right triangle, opposite the right angle.

Front

What is the sum of the angles in a triangle?

Back

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

Front

What is a supplementary angle?

Back

Two angles are supplementary if their measures add up to 180°.

Front

If angle A is 27°, what is the measure of its complement?

Back

The complement of angle A is 63° (90° - 27°).

Front

How do you find the measure of an angle if you know its supplement?

Back

Subtract the measure of the supplement from 180°.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

If one angle of a triangle is 113°, what is the maximum measure of the other two angles?

Back

The maximum measure of the other two angles can be 67° and 0° (but must be positive, so 67° and 13° is valid).

Front

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

Back

Angles in a linear pair are supplementary; they add up to 180°.

Front

If the measure of angle 1 is 27°, what is the measure of angle 4 if they are equal?

Back

Angle 4 is also 27°.