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Comment on Intersecting Circles
Thanks you so mush for the
This is blowing my mind
alternatively to the formula:
then are as usual: (b*h)/2 --> (6*3*root3)/2
That works too!
That works too!
if you start of with this can
?
Great idea!
Great idea!
We know that the area of ONE equilateral triangle is 9√3
So, once you're certain how many equilateral triangle areas you need to subtract (in this case, we must subtract 2 of those areas), then you can start eliminating.
Cheers,
Brent
Does this qs also deserve a
Yes, this is definitely a 700
Yes, this is definitely a 700+ level question. VERY tricky!
Aside: if you hover your cursor over each colored square next to the PLAY button, you'll see the difficulty level of each question.
Green: 350 - 500
Yellow: 510 - 650
Red: 660 - 800
Cheers,
Brent
Hi Brent! Is there a link to
If you go here (https://www
If you go here (https://www.gmatprepnow.com/content/free-content), you'll find a downloadable pdf of all GMAT math flashcards. They contain more than just Geometry, but I think they're useful.
man!! i am in love with your
Thanks for that!
Thanks for that!
Hi Brent, I solved this
Let the two intersecting points be AB. Draw AB and OP. Let them intersect at X. Area of sector OAB is 12pi. Area of triangle OAB is 9*root(3)
Since the area that we have to find is twice of 12pi - 9*root(3), answer is 24pi - 18root(3)
Nice work!!
Nice work!!
Question: DO we have to
No, you don't need to
No, you don't need to memorize the formula for the volume of a sphere.
If the GMAT were to create a question involving a sphere's volume, they will undoubtedly provide the necessary formula.
Here's an example of such a question: https://gmatclub.com/forum/the-volume-of-a-sphere-with-radius-r-is-4-3-p...
Another great video Brent and
All parts inside the blue
All parts inside the blue (and the later yellow) area belong to BOTH circles .
Thanks Brent for confirmation