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Match each circular 3D solid with its curved surface area (CSA) formula:

A1-A, 2-B, 3-C
B1-B, 2-A, 3-C
C1-C, 2-B, 3-A
D1-A, 2-C, 3-B
Answer & Solution
Correct answer: A. 1-A, 2-B, 3-C
Cylinder CSA = 2πrh. Cone CSA = πrl. Sphere area = 4πr².
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