Finding the complement and supplement of an angle

What is the sum of two complementary angles?

• 45 degrees

• 180 degrees

• 90 degrees

• 360 degrees

If one angle is 30 degrees, what is the measure of its supplementary angle?

• 150 degrees

• 90 degrees

• 60 degrees

• 120 degrees

In the equation x + 30 = 90, what is the value of x?

• 30

• 60

• 90

• 120

What is the radian measure equivalent to 90 degrees?

• π/4

• 2π

• π/2

• π

Can an angle of 2π/3 have a complementary angle?

• No, it is less than π/2

• Yes, if another angle is added

• No, it is already more than π/2

• Yes, it can have a complementary angle