You split the L into 2 parts, solve the area of the 2 parts, then add the areas together.
Well by the looks of it The missing angle is 70 degrees. I say this because 110 + 70 = 180. If you were asking what were the two angles just divide.
Its will be 50 pairs
starting with 0+99=99 1+98=99
2+97=99 and so on
1 revolution = 360 degrees
360 degrees x 90 revolutions per minute = 32,400 degrees per minute.
1 minute = 60 seconds.
32,400 degrees per minute / 60 seconds = 540 degrees per second.
