In the given figure, length \( \mathrm{NC} \) is equal to a. \( 30 \mathrm{~cm} \) b. \( 10 \sqr...

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In the given figure, length \( \mathrm{NC} \) is equal to
a. \( 30 \mathrm{~cm} \)
b. \( 10 \sqrt{3} \mathrm{~cm} \)
c. \( 13 \sqrt{2} \mathrm{~cm} \)
d. \( 5 \sqrt{2} \mathrm{~cm} \)
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