| HS Code | Official Doc | Tariff Rate | Origin | Destination | Effective Date |
|---|---|---|---|---|---|
| 9503000071 | Doc | 30.0% | CN | US | 2025-05-12 |
| 9503000073 | Doc | 30.0% | CN | US | 2025-05-12 |
A triangle is a closed, two-dimensional shape with three sides and three angles. It is one of the basic shapes in geometry.
Material: Triangles are not inherently made of any specific material; they are a form that can be constructed from various materials including wood, metal, plastic, fabric, or exist as lines drawn on paper or displayed digitally. The material depends entirely on the application.
Purpose: Triangles are fundamental to numerous applications across diverse fields. They provide inherent structural stability and are used in architecture, engineering, and design. They also serve as the basis for trigonometric calculations.
Function: The primary function of a triangle lies in its ability to distribute weight and force efficiently. Because of their rigid structure, triangles resist deformation under stress. They can also be used to decompose complex shapes into simpler forms for analysis.
Usage Scenarios:
- Architecture & Construction: Triangles are extensively used in bridges (truss bridges), roofs, and building supports to provide strength and stability.
- Engineering: Used in the design of frameworks, machines, and other structures requiring load-bearing capabilities.
- Navigation & Surveying: Triangles are foundational to triangulation, a method used to determine distances and locations.
- Mathematics & Geometry: Essential for understanding angles, area, perimeter, and trigonometric functions.
- Art & Design: Used in logos, patterns, and various visual representations.
- Signage & Safety: Warning signs often utilize triangular shapes to convey important information.
Common Types:
- Equilateral Triangle: All three sides are equal in length; all three angles are 60 degrees.
- Isosceles Triangle: Two sides are equal in length; the angles opposite those sides are equal.
- Scalene Triangle: All three sides are of different lengths; all three angles are different.
- Right Triangle: Contains one angle of 90 degrees (a right angle). The side opposite the right angle is called the hypotenuse.
- Acute Triangle: All three angles are less than 90 degrees.
- Obtuse Triangle: One angle is greater than 90 degrees.
- Similar Triangles: Triangles with the same shape but different sizes; their corresponding angles are equal, and corresponding sides are proportional.
- Congruent Triangles: Triangles with the same shape and size.
The provided reference material does not contain information about “triangle”. Therefore, it is not possible to classify this item using the given data. No HS codes can be determined.