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Clearnote
Q&A
Junior High
Mathematics
求解
Mathematics
Junior High
4 monthsago
Eason
求解
4x1x-4 = 4/L 12.如下圖,一根直立在地面上的路標,在距離3公尺牆壁上 的影長為1公尺,同時在地面上直立1公尺長的竹竿,其 影長為1.5公尺。已知落在地面上的影子皆與牆面互相重 023) 直,並視太陽光為平行光,在不計路標厚度與影子寬度的 情況下,試回答下列問題: (1)此路標的高度為 142公尺。 (2) 若同一時間,身高160公分的阿華在牆壁上的 影長為100公分,則阿華距離牆壁 15.公尺 100:150 = 160 = (x+/004 100x13900=2400 100x=140001 82140 1m 3m 1.5m 40.9 1:1.5=x= 4 水茶
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