Question

The sine of 12 degrees is equal to 0.208, rounded to the nearest thousandth. What is the measure of an angle whose cosine is also equal to 0.208?

12°

68°

78°

102°

Answer 1

Hint:
\(\cos(\theta) = \sin(90 - \theta)\)

Answer 2

78

Answer 3

Correct

Answer 4

Also, check your previous question.