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Junior High
Mathematics
九上數學(圓) 求解謝謝😺
Mathematics
Junior High
9 monthsago
𝓐𝓶𝓪𝓷𝓭𝓪
九上數學(圓)
求解謝謝😺
會否非選系 45.6 x45.6 計算機 87.0 119.2 1240 783 命題觀念弧長及面積的生活應用 (按計算機) 87公尺 - 1. 如右圖,小愷學校的操場是標準的400公尺,跑道的 彎道為半圓形,最內圈的直徑是72公尺,每條跑道 寬為1.2公尺,有8條跑道、跑道的直線長度為87 公尺。若小愷跑在第1道的中央線上,小嘉跑在第8 道的中央線上,則: (1)兩人跑了一圈後,小嘉比小愷多跑了多少公尺?1680 (2)操場PU跑道的面積為何? 1.2×8.9.6 m 72公尺 120××87x7.6=87×19.2-1670.4 A. 183.36 TL+167014 m 1674& 棄 安中其 命題觀念 過圓外一點的兩切線段長度等長 XX 391,68 TL = 783, 36TV
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