Question

http://prntscr.com/b3fsf0

Answer 1

Would you not separate it into two right angle triangles?

Answer 2

That figure is called a "kite" and its area is
(diagonal 1 * diagonal 2) / 2
= (6 * 6) / 2

Answer 3

That makes sense, but can you explain how the 6's in the image represent the diagonals?

Answer 4

Never mind I see now. Thanks!