Correct Answer: Total surface area = 6342 cm²
Subject: 2025
Explanation: • <b>Calculation</b>: Slant height $l=\sqrt{7^2+24^2}=25$ cm; CSA=${\pi}rl=550$ cm²; Volume=$\frac{1}{3}{\pi}r^2h=1232$ cm³; TSA=${\pi}r(l+r)=704$ cm².<br>• <b>Key Fact</b>: Therefore 6342 cm² is NOT correct.<br>• <b>Exam Trick</b>: Calculate $l$ first for a right cone.<br>• <b>Additional Info</b>: Revise the connected rule/fact; this helps distinguish the marked answer from the alternatives.<br>• <b>Why the other options are wrong</b>: Revise the connected rule/fact; this helps distinguish the marked answer from the alternatives.