Find the area of the black region
Find the area of the black region accurate up to 3 decimal places. (A=?, a=20, b=10)Correct answers: 39
The first user who solved this task is Sanja Šabović.
#brainteasers #math #riddles

Kiss
At a dinner party, the speaker who was the guest of honor, was about to deliver his speech when his wife sitting at the other end of the table, sent him a piece of paper with the word “KISS” scribbled on it.
A guest seated next to the speaker said, “Your wife has sent you a KISS before you begin your speech. She must love you very much.” speaker replied, “You don't know my wife. The letters stand for “Keep It Short, Stupid.”