The circumference of the circle is 18pi. We need to determine what fraction of the circumference is arc PQ. The proportionality of circles tells us that:
(degree measurement of arc)/360 = (length of arc)/circumference
The attached drawing shows that the degree measurement of arc PQ is 40 degrees.
40/360 = 1/9
1/9 = (PQ)/18pi
PQ = 2pi.
The correct answer is A.
You do not have the required permissions to view the files attached to this post.
Private tutor exclusively for the GMAT and GRE, with over 20 years of experience.
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.
As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.
For more information, please email me (Mitch Hunt) at
[email protected].
Student Review #1
Student Review #2
Student Review #3
