Circle Question

[cfnyy51]

Hello all,

I took the Praxis 5161 exam yesterday to apply for Math for America. One question was killing me, as I feel I should have been able to figure it out. I have uploaded the image to this post.

If the length of PC is 7, and the measure of angle P is 60 degrees, which of the following is the best approximation of the length of the diameter?
60, 70, 80, or 90.

Thank you

 

[Deleted member 4993]

Hello all,

I took the Praxis 5161 exam yesterday to apply for Math for America. One question was killing me, as I feel I should have been able to figure it out. I have uploaded the image to this post.

If the length of PC is 7, and the measure of angle P is 60 degrees, which of the following is the best approximation of the length of the diameter?
60, 70, 80, or 90.

Thank you

sin(P) = r/(r+PC) → r = ? → d = ??

 

[WVteacher]

Praxis

May I ask what you used to study? I did the bundle of tests on praxis prep from exam edge. I have done well on them so hopefully they are comparable to the real test.bdidbyou ever figure this problem out?