Graduate Record Examinations (GRE) Quizzes Mathematics GRE Problem Solving Quiz

Question:

ABCD is a parallelogram. BD = 2. The angles of triangle BCD are all equal. What is the perimeter of the parallelogram?

Option A):
9
Option B):
8
Option C):
9√3
Option D):
3√3
Option E):
12

Correct Answer is Option B):
8