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Which is greatest AB or BC
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18 Aug 2025, 23:04
18 Aug 2025, 23:04
Expert Reply
00:00
Question Stats:
80% (00:54) correct
20% (01:41) wrong based on 10 sessions
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Attachment:
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Quantity A |
Quantity B |
AB |
BC |
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Re: Which is greatest AB or BC
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19 Aug 2025, 00:04
19 Aug 2025, 00:04
1
sum of angles in a triangle is 180
then that means A + B + C = 180
given A = 25 degrees so
B + C = 155
now if AB = BC then C has to be 25 and that leaves B = 130
BUT!
if B = 25 then C = 130 then BC and AC have a length of 8 units
since its not an equilateral triangle and C has a bigger angle than any angles in the triangle AB has to be larger than 8
so AB > BC
option D is correct
then that means A + B + C = 180
given A = 25 degrees so
B + C = 155
now if AB = BC then C has to be 25 and that leaves B = 130
BUT!
if B = 25 then C = 130 then BC and AC have a length of 8 units
since its not an equilateral triangle and C has a bigger angle than any angles in the triangle AB has to be larger than 8
so AB > BC
option D is correct
gmatclubot
Re: Which is greatest AB or BC [#permalink]
19 Aug 2025, 00:04
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