Mathematics Question and Solution
a²sin60 = 8
√(3)a² = 16
a = 4/(√√(3)) units.
a = 3.0393427426 units.
a is the side length of the big regular triangle.
b²sin60 = 18
√(3)b² = 36
b = 6/(√√(3)) units.
b = 4.5590141139 units.
b is the side length of the biggest regular triangle.
c² = 3.0393427426²+4.5590141139²-2*3.0393427426*4.5590141139cos60
c = 4.020672523 units.
c is the side length of the bigger regular triangle.
Area red is;
½*4.020672523²sin60
= 7 square units.
