Trigonometric Ratios of Complementary Angles

What is the sum of complementary angles?

• 90 degrees

• 180 degrees

• 45 degrees

• 60 degrees

If sine of angle A is 0.5, what is the cosine of its complementary angle?

• 0.5

• 0.866

• 0.707

• 1

How is the tangent of an angle related to the cotangent of its complementary angle?

• They sum to 1

• They are equal

• They are reciprocals

• They are unrelated

What is the cotangent of 45 degrees?

• 0.5

• Infinity

• 1

• 0

Which trigonometric function of an angle is equal to the secant of its complementary angle?

• Cosine

• Tangent

• Cosecant

• Sine

If cosecant of angle A is 2, what is the secant of its complementary angle?

• 0.707

• 1

• 2

• 0.5

Which of the following is true for complementary angles?

• Cosecant of an angle equals tangent of its complementary angle

• Tangent of an angle equals sine of its complementary angle

• Sine of an angle equals tangent of its complementary angle

• Cosine of an angle equals sine of its complementary angle