你即將離開本站

並前往https://www.khanacademy.org/math/geometry/hs-geo-congruence/hs-geo-quadrilaterals-theorems/v/proof-diagonals-of-a-parallelogram-bisect-each-other

Proof: Diagonals of a parallelogram (video) - Khan Academy

Sal proves that a quadrilateral is a parallelogram if and only if its ... opposed to sighting a symbol already marked on the diagram identifying the angle.

確定！ 回上一頁

查詢 「Parallelogram symbol」的人也找了：

  1. Square symbol
    2.
  2. Rectangle symbol
    3.
  3. Fraction symbol
    4.
  4. Equal symbol
    5.
  5. Plus symbol
    6.
  6. Triangle symbol
    7.
  7. Circle symbol
    8.
  8. Symbol Box
    9.