"Maybe we should start studying. Do you remember the sum our Maths teacher gave us?"

" Find the total area of an isosceles triangle with sides of length 1 cm and base of length 2 cm as well as a circle of radius 2 cm with an inscribed point."

"What's your answer?"

"My answer? It is 4pi+sqrt(2)"

"What about the inscribed point?"

"What about it? It's area is zero."

next                                             [or on to ]                                         effacing