Answer:
C
Step-by-step explanation:
Use the sine ratio in the left, right triangle to find the common side to both triangles and the exact values
sin60° = , cos45° = , thus
sin60° = = = ( cross- multiply )
2 × opp = 21 ( divide both sides by 2 )
opp =
Now consider the right triangle on the right, using the cosine ratio
cos45° = = = ( cross- multiply )
x = × = → C
So what would you like to know plus what is the 47 for?
The similarity ratio would be 2:3.
I'm sorry, I don't see the question. Could you please retake the photo in better quality so I could answer it? Thanks!
It will be:
Positive Cotermintal Angles - 513 & 873
and
Negative Coterminal Angles - -207 & -567