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gmattesttaker2
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Hello,
Can you please assist with the following? This is from OG 13 (Qn. 122). Sorry, I tried to draw the diagram but it was not coming accurately. So I am not uploading it.
122)
In the figure above, points A, B, C, D, and E lie on a line. A is on both circles, B is the center of the smaller circle, C is the center of the larger circle, D is on the smaller circle, and E is on the larger circle. What is the area of the region inside the larger circle and outside the smaller circle?
(1) AB = 3 and BC = 2
(2) CD = 1 and DE = 4
OA: D
[spoiler]1) is fine but not clear with why 2) is also sufficient.[/spoiler]
My approach was as follows:
CD = 1 and DE = 4. So CE = 5 and so Radius of larger circle = 5
In the book it is saying something like Diameter of larger circle = 10. I am lost after this point though. Can you please assist?
Regards,
Sri
Can you please assist with the following? This is from OG 13 (Qn. 122). Sorry, I tried to draw the diagram but it was not coming accurately. So I am not uploading it.
122)
In the figure above, points A, B, C, D, and E lie on a line. A is on both circles, B is the center of the smaller circle, C is the center of the larger circle, D is on the smaller circle, and E is on the larger circle. What is the area of the region inside the larger circle and outside the smaller circle?
(1) AB = 3 and BC = 2
(2) CD = 1 and DE = 4
OA: D
[spoiler]1) is fine but not clear with why 2) is also sufficient.[/spoiler]
My approach was as follows:
CD = 1 and DE = 4. So CE = 5 and so Radius of larger circle = 5
In the book it is saying something like Diameter of larger circle = 10. I am lost after this point though. Can you please assist?
Regards,
Sri
