Good luck, Perunoid. There was a problem about travelling to Sofia from Tallinn in the exam.
Let me guess, the trains met in Budapest.
If you connect Sofia and Tallin with one line and draw another line from Kiev to München, the two lines will cross at an angle, which will have a sine.
The sine of the cross.
If it is a regular cross, the sine of the cross equals 1.
Then what's the name of the rose?sine of the cross