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歡迎您訪問數學考題練習:某人在沿坡度為1:3的斜坡向上走了100米,則!

數學考題練習:某人在沿坡度為1:3的斜坡向上走了100米,則

更新時間:2024-01-12 14:10:45作者:貝語網校

某人在沿坡度為1:3的斜坡向上走了100米,則他的高度上升了________米.

試題答案

10

試題解析

根據坡度的定義可以求得AC、BC的比值,根據AC、BC的比值和AB的長度即可求得AC的值,即可解題.

解答:解:AB=100,

tanB==,

設AC=x,BC=3x,

則x2+(3x)2=1002

解得x=10,

故答案為 10.

點評:本題考查了勾股定理在直角三角形中的運用,考查了坡度的定義,考查了直角三角形中三角函數值的計算.

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