Question

The cosine of the complimentary angle to 58° a. 0.74 c. 0.83 b. 0.85 d. 0.94

Answer 1

Answer:

Option b is correct!

Step-by-step explanation:

cosine of complimentary angle  to 58 is

complimentary of 58 means  = 90 -58  = 32   [ since sum of complimentary angles is 90 degrees ]

so its asking for cos (90-58) =  cos 32  which equals  0.848 or 0.85

therefore option b ( 0.85 ) is correct!

Answer 2

the sum of complimentary angles equal 90°.

x + 58° = 90°

        x = 32°

cos (32°) = 0.848

Answer: B

Note: you can also take sin (58°) to get the answer.