Trigonometry Basics Quiz Quiz

10 multiple choice questions

1. In a right triangle, sine of an angle is defined as:

A) Opposite side / Hypotenuse B) Adjacent side / Hypotenuse C) Opposite side / Adjacent side D) Hypotenuse / Opposite side

2. In a right triangle, cosine of an angle is:

A) Opposite / Adjacent B) Adjacent / Hypotenuse C) Hypotenuse / Adjacent D) Opposite / Hypotenuse

3. Tangent of an angle equals:

A) Adjacent / Opposite B) Hypotenuse / Opposite C) Opposite / Adjacent D) Adjacent / Hypotenuse

4. The Pythagorean theorem states that in a right triangle:

A) a^2 + b^2 = c^2 B) a + b = c C) a^2 - b^2 = c^2 D) 2a + 2b = c

5. If sin(theta) = 3/5, what is cos(theta)?

A) 4/5 B) 5/3 C) 3/4 D) 4/3

6. The angle of elevation is measured from:

A) The ground upward B) The horizontal upward C) The vertical downward D) Any direction

7. What is tan(45 degrees)?

A) 1 B) 0 C) undefined D) sqrt(3)

8. What is sin(30 degrees)?

A) sqrt(3)/2 B) 1/2 C) sqrt(2)/2 D) 1

9. In SOHCAHTOA, the 'CAH' stands for:

A) Cosine = Adjacent / Hypotenuse B) Cosine = Adjacent / Hypotenuse C) Cosine = Opposite / Adjacent D) Cosine = Hypotenuse / Adjacent

10. An angle of 90 degrees is called:

A) A right angle B) An acute angle C) An obtuse angle D) A straight angle

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