SAT Triangles-Perimeter

Geometry Level 1

In the figure above, \(ABCDEFG\) is a regular heptagon. To each of its sides is attached an equilateral triangle. If the perimeter of \(ABCDEFG\) is 84, what is the perimeter of the star-shaped figure?

(A) \(\ \ 84\)
(B) \(\ \ 96\)
(C) \(\ \ 144\)
(D) \(\ \ 168\)
(E) \(\ \ 216\)

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