sin of one angle = cos of the other Quiz

Name: ______________________   Date: __________   Score: ____ / 10

10 questions. Calculator allowed. Show your working. steplyclass.com/geometry/sin-of-one-angle-equals-cos-of-the-other/quiz/

1. 1

   sin 30° = cos x°, find x
   1. A) x = 90
   2. B) x = 60
   3. C) x = 30

2. 2

   cos 25° = sin k°, find k

   Answer: ____________________

3. 3

   sin x° = cos 50°, find x
   1. A) x = 40
   2. B) x = 50
   3. C) x = 90

4. 4

   cos 45° = sin x°, find x

   Answer: ____________________

5. 5

   A and B are the small angles of a right triangle, sin A = 45, find cos B

   Answer: ____________________

6. 6

   Triangle PQR, angle R = 90°, cos P = 513, find sin Q

   Answer: ____________________

7. 7

   Solve sin x° = cos(x + 30)°
   1. A) x = 60
   2. B) x = 90
   3. C) x = 30
   4. D) x = 0

8. 8

   Solve cos k° = sin(k − 20)°

   Answer: ____________________

9. 9

   Solve cos(3x)° = sin(x + 14)°
   1. A) x = 7
   2. B) x = 90
   3. C) x = 19
   4. D) x = 76

10. 10

    Solve sin(5x + 4)° = cos(3x − 2)°

    Answer: ____________________