Definition

Examples

• 在正方形中，两条对角线的长度相等。
  Zài zhèngfāngxíng zhōng, liǎng tiáo duì jiǎo xiàn de chángdù xiāngděng.
  In a square, the lengths of the two diagonals are equal.
• 他画了一个矩形，并测量了对角线。
  Tā huà le yí gè jǔxíng, bìng cèliáng le duì jiǎo xiàn.
  He drew a rectangle and measured the diagonal.
• 这个图形有两条对角线。
  Zhège túxíng yǒu liǎng tiáo duì jiǎo xiàn.
  This figure has two diagonals.