Find the area of the shaded ...
Find the area of the shaded octagon (A=?, a=1999) and express result to the accuracy of 3 decimal.Correct answers: 22
The first user who solved this task is Allen Wager.
#brainteasers #math #riddles
BatteryIn 1940, a leak-proof flashlight battery (Ray-o-Vac) was patented in the U.S. by Herman Anthony (No. 2,198,423). |