中文词源
triangle 三角形，三角关系
tri-, 三，angle,角。
英语词源
- triangle (n.)
- late 14c., from Old French triangle (13c.), from Latin triangulum "triangle," noun use of neuter of adjective triangulus "three-cornered, having three angles," from tri- "three" (see tri-) + angulus "corner, angle" (see angle (n.)).
权威例句
- 1. The sum of all the angles of a triangle is 180 degrees.
- 三角形内角总和为180度。
- 2. The hypotenuse is the longest side of a right triangle.
- 直角三角形的斜边是直角三角形中最长的边.
- 3. The base angles of an isosceles triangle are equal.
- 等腰三角形的底角相等.
- 4. He drew a right triangle.
- 他画了一个直角三角形.
- 5. The place is a cobbled triangle.
- 这个地方是一块铺石子的三角地.