Ask your own question, for FREE!
Mathematics 9 Online
OpenStudy (anonymous):

Use the image below to answer the following question. Find the value of sin x° and cos y°. What relationship do the ratios of sin x° and cos y° share? PIC BELOW IN COMMENTS WILL GIVE MEDAL AND FAN

OpenStudy (anonymous):

OpenStudy (mertsj):

First use the Pythagorean Theorem to find the hypotenuse of that triangle.

OpenStudy (anonymous):

How do I do that when I have no numbers to work with?

OpenStudy (mertsj):

Do you see that little red thing on that triangle?

OpenStudy (anonymous):

Oh my gosh I was looking at the wrong problem. Lol okay so we have 8^2+6^2=c^2 which is 64+36=c^2 which is 100=c^2 which would be 10, correct?

OpenStudy (mertsj):

yes. What is the measure of the side that is opposite the angle whose measure is x degrees?

OpenStudy (anonymous):

6.

OpenStudy (anonymous):

@Mertsj

OpenStudy (mertsj):

And what is the hypotenuse?

OpenStudy (anonymous):

10. @Mertsj

OpenStudy (mertsj):

The definition of sin x is side opposite angle x/hypotenuse

OpenStudy (mertsj):

So what is the sin of x?

OpenStudy (anonymous):

Uhhhh.......

OpenStudy (anonymous):

6/10? @Mertsj

OpenStudy (mertsj):

Reduce it

OpenStudy (anonymous):

3/5. @Mertsj

OpenStudy (mertsj):

so sin x = 3/5 Now do the same thing for cos y except the definition of cosy is side adjacent angle y/hypotenuse.

OpenStudy (anonymous):

Okay so wait. Would opposite over hypotenuse be 8/10 which is 4/5? I think I got my numbers mixed up and cos is supposed to be 3/5. Double check me? @Mertsj

OpenStudy (anonymous):

So the sin would be 4/5 and the cos would be 3/5. The last part of the question is what relationship do they have?

OpenStudy (anonymous):

@Mertsj

OpenStudy (mertsj):

sin x = 3/5 cos y = 3/5 The relationship between sin x and cos y is that they are equal.

OpenStudy (anonymous):

Ohhhh....I understand now.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!