If the curved surface area of a right circular cone of diameter \( 14 \mathrm{~cm} \) is \( 550 ...

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If the curved surface area of a right circular cone of diameter \( 14 \mathrm{~cm} \) is \( 550 \mathrm{~cm}^{2} \), then find the height of the cone.
a. \( 18 \mathrm{~cm} \)
b. \( 22 \mathrm{~cm} \)
-c. \( 23 \mathrm{~cm} \)
d. \( 24 \mathrm{~cm} \)
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