A) 256
B) 8
C) 240
D) 1.44
Correct Answer: C
Solution :
\[\sqrt{{{(272)}^{2}}-{{(128)}^{2}}}\] \[=\sqrt{(272-128)(272+128)}\] \[=\sqrt{144\times 400}\] \[=\sqrt{12\times 12\times 20\times 20}\] \[=12\times 20=240\]You need to login to perform this action.
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