2023年5月练习卷(易) · 第 1 题

2023年5月练习卷(易) · 原库模块 2 · Q1 原库参考解析

Cylinder A and Cylinder B are similar right cylinders. The radius of Cylinder A is 9, and its surface area is dπ. The surface area of Cylinder B is tπ . What is the value of t − d ?
(Note: surface area of a cylinder is \( 2 \)πrh\( +2 \)π\( r^{2} \)  )