quadrilateral

Definitions

quadri- (four) + later (side) + -al = 'four-sided.' A pure geometry term: any closed figure with four straight sides. The same counting logic gives equilateral (equal-sided) and unilateral (one-sided).

Common Collocations

• 1.regular quadrilateral正四边形
• 2.irregular quadrilateral不规则四边形
• 3.convex quadrilateral凸四边形
• 4.quadrilateral shape四边形图形

Example Sentences

• 1.

  A square is a special kind of quadrilateral with four equal sides.

• 2.

  The students learned to calculate the area of a quadrilateral.

• 3.

  Any quadrilateral can be divided into two triangles.