Calculating Blue Shaded Area.
Let a be the radius of each of the circle with area 10 square units.
Calculating a.
πa² = 10
a² = 10/π
a = √(10/π) units.
a = 1.78412411615 units.
Area Blue is;
3(area sector with radius √(10/π) units and angle 60°).
= 3(60π*√(10/π)²÷360)
= 3(600/360)
= 3(10/6)
= 5 square units.
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