2024年3月A卷 · 第 21 题

2024年3月A卷 · 原库模块 2 · Q21 原库参考解析

The table shows the volume of two similar solids, right circular cylinder A and right circular cylinder B. The radius of right circular cylinder A is 3 units. The surface area of right circular cylinder A is kπ square units, and the surface area of right circular cylinder B is nπ square units, where k and n are constants. What is the value of n - k? (The surface area of a right circular cylinder with radius r and height h is \( 2πr^{2}+2πrh \) .)