Hi,
I would like to have an answer to a rather simple DS question. My doubt essentially stems from the inconsistent answers to this question between two different GMAT tests:
DS: Is triangle ABC, with two sides of lengths 3 & 4 inches, a rightangled triangle?
(1) The length of the third side is 5 inches.
(2) Angle B = 90 degrees
Now, is the correct answer "D" or "B"? That is, would it be right in assuming that (1) implies a "classic" 345 righttriangle, which meets the Pythagorus theorem? Or, is it possible for a triangle to have sides in such a proportion without necessarily being a rightangled triangle? Of course, geometrically speaking, it seems impossible to draw such a triangle without its being a rightangled triangle.
I look forward to a conclusive answer. Thanks!
Simple DS  help!
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IMO the ans should be D,
ofcourse stmt2 is SUFF
now in stmt 1, we have a 345 triangle,
largest side is 5
& 5^2 = 3^2 + 4^2
since the pythagoras theorem is satisfied here hence the triangle must be a right angle traingle coz pythagoras theorem will not hold true for any other type of triangle except a right angled one (to the best of my knowledge)
ofcourse stmt2 is SUFF
now in stmt 1, we have a 345 triangle,
largest side is 5
& 5^2 = 3^2 + 4^2
since the pythagoras theorem is satisfied here hence the triangle must be a right angle traingle coz pythagoras theorem will not hold true for any other type of triangle except a right angled one (to the best of my knowledge)
Regards
Samir
Samir