but you are on the right track - your third point.

we don’t learn Pythagoras theorem in elementary schools here - so students are trained to put two and two together and apply the darned formula of area of a triangle haha

cryotosensei

Been a long time since I played with these, but it seems I can just work it out and fill in the missing lengths... I used to enjoy these little tricksy exercises in math class.

....oh wait, I can ignore the sections to the sides and just look at the shades area as part of a twisted rectangle (

math

Are you smarter than a sixth-grader

_100% I'm not._

Been a long time since I played with these, but it seems I can just work it out and fill in the missing lengths... I used to enjoy these little tricksy exercises in math class. 


-  Pythagorean to get the left triangle hypotenuse 
- Pythagorean to get the right-most white triangle hypothenuse 
- white triangles in the middle have **same base and hourglass-like height, so must be half the area of a 7x8 rectangle.**

....oh wait, I can ignore the sections to the sides and just look at the shades area as part of a twisted rectangle (_rhomboids??_)