Unit 6 Lessons 4-5 Review

Front

What is the measure of ∠ABE if it is given as 129°?

Back

The measure of ∠ABE is 129°.

Front

How do you determine the value of x in a diagram?

Back

To determine the value of x, use the properties of angles or equations based on the diagram.

Front

Convert 5π/6 radians to degrees.

Back

5π/6 radians is equal to 150 degrees.

Front

Solve for x in the equation: x + 5 = 38.

Back

x = 33.

Front

Convert 225 degrees to radians.

Back

225 degrees is equal to 5π/4 radians.

Front

What is the sum of angles in a triangle?

Back

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

Front

What is the relationship between degrees and radians?

Back

Degrees can be converted to radians by multiplying by π/180.

Front

If two angles are complementary, what is their sum?

Back

The sum of two complementary angles is 90°.

Front

What is the formula for finding the measure of an exterior angle of a triangle?

Back

The measure of an exterior angle is equal to the sum of the two opposite interior angles.

Front

How do you find the measure of an angle in a right triangle?

Back

Use trigonometric ratios: sine, cosine, or tangent.