Find the area of the shaded figure
Express result to the accuracy of 3 decimal.Correct answers: 22
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math
Magic lantern slidesIn 1850, the first U.S. patent for magic lantern slides made of glass plate was issued to their inventor Frederick Langenheim of Philadelphia, Pa. (No. 7,784) as an "improvement in photographic pictures on glass." |