BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

geometry-triangles

Expert replies
by gopinathhyd » Thu Mar 01, 2012 7:57 pm
Is a Triangle ABC Isosceles Triangle.

1. BD=BC
2. Area of ABD and ACD are same.



(I saw this question in Magoosh GMAT, Ans is D, but my question is for an equilateral traingle also BD=BC. How can statement 1 is sufficient)
Attachments
Triangle1.ppt
(53.5 KiB) Downloaded 119 times
Join the discussion
Source: — Data Sufficiency |

by krusta80 » Thu Mar 01, 2012 8:15 pm
gopinathhyd wrote:Is a Triangle ABC Isosceles Triangle.

1. BD=BC
2. Area of ABD and ACD are same.


(I saw this question in Magoosh GMAT, Ans is D, but my question is for an equilateral traingle also BD=BC. How can statement 1 is sufficient)
Equilateral triangles are a subset of isoceles triangles. In other words, a triangle is isoceles if it has at least two equal sides...not EXACTLY two.
Join the discussion

by [email protected] » Sun Mar 18, 2012 6:01 am
This was a good post. Even i initially marked this answer as E. But yes if a triangle is an equilateral triangle, then the triangle has to be a isosceles triangle.

Good Post...
IT IS TIME TO BEAT THE GMAT

LEARNING, APPLICATION AND TIMING IS THE FACT OF GMAT AND LIFE AS WELL... KEEP PLAYING!!!

Whenever you feel that my post really helped you to learn something new, please press on the 'THANK' button.
Join the discussion