A) \[{{s}^{4}}\]
B) \[{{b}^{2}}{{c}^{2}}\]
C) \[{{c}^{2}}{{a}^{2}}\]
D) \[{{a}^{2}}{{b}^{2}}\]
Correct Answer: D
Solution :
\[\Delta \]is right angled, \[\angle C={{90}^{o}}\] \[\therefore 4{{\Delta }^{2}}=4{{\left( \frac{1}{2}ab \right)}^{2}}={{a}^{2}}{{b}^{2}}\].
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