Question: Intersection and Arc

Comment on Intersection and Arc

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

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

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

thanks again!
gmat-admin's picture

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]

ok. thanks for all the help :)

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