Geometry

Question Analysis
This question involves calculating surface area with both radius and slant height given directly.
The main focus is applying the standard surface area formula efficiently.

Key Concept Explanation
Surface Area = πr² + πrl
Where r = 16 cm, and l = 20 cm

Step-by-Step Solution
πr² = π(16²) = 256π
πrl = π(16)(20) = 320π
Total = 256π + 320π = 576π cm²

Common Mis...