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拜託幫我翻譯一下下列數學題目或數學用語成英文

1.已知一個梯形的四個邊長為1、2、3、4,求此梯形的面積是多少

2.如右圖,在等腰梯形ABCD中,AC平分角DAE,E、F分別是兩對角線AC、BD的中點,且EF=a,試求梯形ABCD面積

3.梯形ABCD中

4.若AC=BD,且AC垂直BD,求證梯形的高和中線相等

5.E、F分別是對角線BD、AC中點

6.AC與BD交於E

7.E是CD中點

8.CO平分角DCB

9.求O到BC的距離

10.CE是角BCD的平分線

11.CE把梯形ABCD分成為面積S1和S2兩部分

12.EF是中線

13.四邊形AEFD的面積與四邊形EBCF的面積之比值為4

急需,麻煩各位了

已更新項目:

很感謝HYPERCUBE的幫忙

若仍有問題會再問^^

2 個已更新項目:

可以麻煩再翻一句嗎?

用長為1、4、4、5的線段為邊作梯形,求該梯形面積

3 個已更新項目:

可否請問一下第4句的prove that the height and the median of the trapeziumis

the same.

是否須改成

prove that the height and the median of the trapeziumis

are the same.

4 個已更新項目:

真的感謝您

幫了我一個大忙

1 個解答

評分
  • 8 年前
    最佳解答

    1) Find the area of the trapezium with its side lengths are 1, 2, 3 and4.2) In the right diagram, in isosceles trapezium ABCD, AC bisect ∠DAE, E and F are2)the mid - point of diagonal AC and BD, EF = a. Findthe area of trapezium ABCD.3) In trapezium ABCD.4) If AC = BD, AC ⊥ BD, prove that the height and the median of the trapeziumis2 )the same.5) Eand F are the mid - point of diagonal BD and AC.6)AC and BD intesect at E.7)E is themid - point of CD.8)CO bisect ∠DCB9)Find the distance betweem O and BC10)CE bisect ∠BCD11)CE divide trapezium into 2 parts, with area are S1 and S2.12)EF is the median.13)(Area of quadrilateral AEFD)/(Area of quadrilateral EBCF) = 4.希望幫到你,不明白的話可再補充問題!

    2012-06-23 23:14:01 補充:

    i) 用長為1、4、4、5的線段為邊作梯形,求該梯形面積

    -> Find the area of the trapezium with side length 1, 4, 4, and 5.

    ii) You are right,

    "prove that the height and the median of the trapezium are the same" is right.

    參考資料: 我的數學世界
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