Mathematics Question and Solution
Sir Mike Ambrose is the author of the question.
Notice;
The single side length of the square is 12 units.
Area blue is;
Area triangle with height and base 8 units each - Area triangle with height 8 units and base 4 units - Area triangle with two side 4.24264068712 units and 3.83325939 units, and angle (45-atan½)°
= ½(64) - ½(32) - ½(3.83325939*4.24264068712)sin(45-atan½)
= 32 - 16 - 2.57142857143
Therefore area blue exactly in decimal form is;
16 - 2.57142857143
= 13.4285714286 square units.
