Mathematics Question and Solution
a² = 3²+4²-2*3*4cos60
a² = 25-12
a = √(13) units.
a = 3.6055512755 units.
a is the side length of the square.
(√(13)/sin60) = (4/sinb)
b = 73.897886248°
sin73.897886248 = c/3
c = 2.8823067685 units.
d = a-c
d = √(13)-2.8823067685
d = 0.723244507 units.
Therefore;
Red Shaded Area is;
Area triangle with height 0.723244507 units and base √(13) units.
= 0.5*0.723244507√(13)
= 1.3038475773 square units.
