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A 20-foot ladder leaning against a vertical wall with the base of the ladder 10 feet from the wall is pulled 2 feet farther out from the wall, causing the top of the ladder to drop x feet.
Quantity A
x
Quantity B
2
B显示答案
· 相关考点
4.3.8 直角三角形
4.3.8 直角三角形
以上解析由 考满分老师提供。