Mathematics
Senior High
想問這題圖要怎麼畫和怎麼解！
A、B、C為地面上三點,A在B的正南方,CB的正東方。有一塔在B的正西方,
由A、B、C三點測塔頂的仰角分別為450、60°、30°,若AB=100公尺,
則塔高為
15006
公尺,A與C相距為
200. 公尺。
100xtan60° = 100,53
N:
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