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505-555 (Easy)|   Geometry|      
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Bunuel
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In the figure above, what is the area of the circular region with cent 17 Dec 2014, 08:05
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

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15% (low)

Question Stats:

82% (01:15) correct 18% (01:23) wrong based on 198 sessions

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In the figure above, what is the area of the circular region with center O ?

(1) MN is perpendicular to RS.
(2) The area of triangular region OMT is 4.


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2014-12-17_1904.png
2014-12-17_1904.png [ 4.05 KiB | Viewed 6495 times ]
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E
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In the figure above, what is the area of the circular region with cent 17 Dec 2014, 08:19
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1. Obviously insufficient since we dont know exact lengths .Insuffice..

2. We cant determine radius of circle just by area of a triangle. Insuffice.

1+2>> we have (1/2)*OM*OT=4 ;OM=r but we dont know length of OT to detemine R.Hence Insufficeint

Ans E
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In the figure above, what is the area of the circular region with cent 17 Dec 2014, 22:00
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Bunuel

Tough and Tricky questions: Geometry.




In the figure above, what is the area of the circular region with center O ?

(1) MN is perpendicular to RS.
(2) The area of triangular region OMT is 4.

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Attachment:
2014-12-17_1904.png
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To find the area of circle, we need to know the radius or OM or ON or OS or OR..

st1 MN perpendicular to RS...Does not help

st 2 says OM*OT=8...does not help

Combining we get..nothing new...

Ans E
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In the figure above, what is the area of the circular region with cent 17 Dec 2014, 23:22
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Ans Is E cause we can not get the valUE OF THE the radius even by combining the 2 statements.
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In the figure above, what is the area of the circular region with cent 23 Dec 2014, 02:30
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S(1): Helps us understand MOT is a right angled but no information about lengths. So area cannot be calculated. Not suff.
S(2): Gives area of the triangle using which we cannot calculate radius(OM). Hence Not suff.

Combining we get that MOT is a right angled Triangle hence 1/2*OM*OT=4. Using this we cannot calculate OM value. Thus insufficient.

Hence answer is E. Not sure how it is D. Would love to read the solution for this.
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In the figure above, what is the area of the circular region with cent 01 Dec 2018, 06:29
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Hi

Recheck OA, it is E.

Please see explanation, and tag in case of any confusion.

Thanks
soapbolt
Bunuel
Bunuel

Tough and Tricky questions: Geometry.




In the figure above, what is the area of the circular region with center O ?

(1) MN is perpendicular to RS.
(2) The area of triangular region OMT is 4.

Kudos for a correct solution.

Show Spoiler
Attachment:
2014-12-17_1904.png

The correct answer is D.


Answer is D :dazed

Definitely need an explanation here

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In the figure above, what is the area of the circular region with cent 27 Jul 2024, 03:34
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