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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
66% (01:58) correct
34%
(02:09)
wrong
based on 462
sessions
History
Date
Time
Result
Not Attempted Yet
What is the degree measure of angle a in the figure above?
(1) d + e = 275°
(2) b + c = 295°
Show SpoilerMy take
Should be E. I can create an equation with both 1 and 2 that only includes e (which is also a) but the final step is 180 = 2e +180, so everything collapses...
Attachment:
triangle.jpg [ 26.05 KiB | Viewed 27036 times ]
26 Aug 2011, 02:57
Kudos
Bookmarks
Hello,
I guess its B. Please provide OA
Here's my explanaition
given
b + c = 295
180 - f + 180 - g = 295
360 - (f+g) = 295
360 - (180 -e) = 295
180 + e = 295
e = 115
hence a = 115 (vertically opposite angles)
Hope this helps.
Consider Kudos if You could understand my explanation
I guess its B. Please provide OA
Here's my explanaition
given
b + c = 295
180 - f + 180 - g = 295
360 - (f+g) = 295
360 - (180 -e) = 295
180 + e = 295
e = 115
hence a = 115 (vertically opposite angles)
Hope this helps.
Consider Kudos if You could understand my explanation
General Discussion
26 Aug 2011, 02:59
Kudos
Bookmarks
<a = <e
Stmt1: d+e=275
e=275-d
We don't know d. Not Sufficient.
Stmt2: b+c=295
b+f=180
c+g=180
Adding, b+c+f+g=360
295+f+g=360
f+g=65
e+f+g=180
e=180-65= 115
a=115
Sufficient.
OA B
Stmt1: d+e=275
e=275-d
We don't know d. Not Sufficient.
Stmt2: b+c=295
b+f=180
c+g=180
Adding, b+c+f+g=360
295+f+g=360
f+g=65
e+f+g=180
e=180-65= 115
a=115
Sufficient.
OA B
