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DS - Geometry

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DS - Geometry

by harsh.champ » Fri Feb 19, 2010 10:27 am
In triangle ABC, AB = x, BC = y, and CA = y-4. Which of the three angles of triangle ABC is the smallest?

1. y = x + 5
2. x = 6
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by shashank.ism » Fri Feb 19, 2010 11:40 am
harsh.champ wrote:In triangle ABC, AB = x, BC = y, and CA = y-4. Which of the three angles of triangle ABC is the smallest?

1. y = x + 5
2. x = 6
Any triangle's smallest angle is against the smallest side.
here CA = y-4 so it is smaller than AB . Now we have to compare AB and BC
St. 1: x=y-5 so it is smallest side hence sufficient
St.2 : X=8 but no details or relation with y
insuff

Ans A
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