Correct option is (B) √3 cm2
Side of equilateral triangle is a = 2 cm
\(\therefore\) Area of equilateral triangle \(=\frac{\sqrt3}4a^2\)
\(=\frac{\sqrt3}4\times2^2\) = \(\sqrt{3}\) \(cm^2\)
Correct option is (C) 1
Area of flag \(=\frac12\times\) Base \(\times\) Height
\(=\frac12\times(2+\sqrt2)\times(2-\sqrt2)\)
\(=\frac{4-2}2\) = 1 square units
