Leaves show different types of modification as follows:
1. Leaf spines:
Sometimes entire leaf is modified into spines (Opuntia) or margin of leaf becomes spiny (Agave) or stipule modifies into spine (Acacia, Zizyphus)...
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
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