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Triangle BCD is an equilateral triangle. Which means all its sides are equal.

ABCD is a parallelogram, which means that all opposite sides are parallel and equal.

The 2 together imply that its a Rhombus with all sides of length 2.

Perimeter = 8. D


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If all 3 angles of \(\triangle\) BCD are equal it means it is an equilateral \(\triangle\) and thus all its sides are equal
if 2 adjacent sides of parallelogram are equal it means that all sides are equal
AB=BC=CD=DA=2
perimeter of parallelogram = 4 * 2 = 8
Correct Answer - D
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Bunuel

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

A. 12
B. 9√3
C. 9
D. 8
E. 3√3

Dear Moderator,
Unable to see the image, please note I have not scrolled down, for fear of seeing the solution. Hope you will look into this and do the needful.
Thank you.
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stne
Bunuel

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

A. 12
B. 9√3
C. 9
D. 8
E. 3√3

Dear Moderator,
Unable to see the image, please note I have not scrolled down, for fear of seeing the solution. Hope you will look into this and do the needful.
Thank you.
________________
Fixed. Thank you.
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