Question: Intersection and Arc

Comment on Intersection and Arc

bhattmiral - February 7, 2017
Can we assume straight line BC & AE, If a figure is not drawn to scale?
gmat-admin's picture

gmat-admin - February 8, 2017

Great question!

On the GMAT (regardless of whether the figure is drawn to scale), all lines that APPEAR to be straight can be assumed to be straight.

More here: https://www.gmatprepnow.com/module/gmat-geometry/video/863

JAD - July 23, 2017
hi, would you be able to explain the last part - how does 2/9 x (60pi) = 40pi/3?

thanks again!
gmat-admin's picture

gmat-admin - July 23, 2017

Let's break the process into two steps
(2/9) x (60pi) = (2/9) x (60pi/1)
= 120pi/9
= 40pi/3 [we took 120pi/9 and divided top and bottom by 3]

JAD - July 24, 2017
ok. thanks for all the help :)

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