A star is made by overlapping two identical equilateral triangles, as shown. The entire star has an area of 36. What is the area of the shaded region?

Answer Choices
A. 24
B. 18
C. 27
D. 33
E. 30
A star is made by overlapping two identical equilateral triangles, as shown. The entire star has an area of 36. What is the area of the shaded region?
Answer Choices
A. 24
B. 18
C. 27
D. 33
E. 30