Multiple choice general knowledge

cos60=

  1. 1/2

  2. 0

  3. 1

  4. sqrt3/2
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

cos(60°) = 1/2. In the special 30-60-90 right triangle, the side adjacent to the 60° angle is half the hypotenuse. cos(0°) = 1 and cos(90°) = 0, so 1/2 is the correct intermediate value.