# Find the area of the shaded region

Find the area of the shaded region accurate up to 3 decimal places. (A=?, r=1389)Correct answers:

**39**The first user who solved this task is

**Dejan Mratinkovic**.#brainteasers #math #riddles

### Klopman diamond....

A businessman boarded a plane to find, sitting next to him, an elegant woman wearing the largest, most stunning diamond ring he had ever seen. He asked her about it.

"This is the Klopman diamond," she said. "It is beautiful, but there is a terrible curse that goes with it."

"What's the curse?" the man asked.

"Mr. Klopman."