right angle

简明释义

直角

英英释义

例句

1.When setting up the projector, make sure it is at a right angle (直角) to the screen for the best image.

设置投影仪时，请确保它与屏幕成一个直角以获得最佳图像。

2.To draw a right angle (直角), you can use a protractor or a set square.

要画一个直角，可以使用量角器或三角尺。

3.The carpenter used a square to ensure that the corners formed a right angle (直角).

木匠使用方尺确保角落形成一个直角。

4.In geometry, a triangle with one right angle (直角) is called a right triangle.

在几何中，具有一个直角的三角形称为直角三角形。

5.The architect designed the room with right angles (直角) to maximize space efficiency.

建筑师设计房间时使用了直角以最大化空间效率。

作文

In the world of geometry, the concept of a right angle is fundamental. A right angle is defined as an angle that measures exactly 90 degrees. It is one of the most important angles in mathematics and plays a crucial role in various fields, including architecture, engineering, and art. Understanding the properties of a right angle can help us comprehend more complex geometric concepts and solve practical problems. To visualize a right angle, imagine the corner of a square or rectangle. Each corner forms a right angle, allowing the two sides to meet at a perfect perpendicular intersection. This characteristic is essential for ensuring that structures are stable and balanced. For example, when constructing a building, architects must ensure that the walls meet at right angles to maintain the integrity of the structure. If the angles were not right angles, the building could become unstable, leading to potential hazards. Moreover, the right angle is also significant in the field of trigonometry. It serves as the basis for defining the sine, cosine, and tangent functions, which are vital for solving problems involving triangles. In a right triangle, one of the angles is a right angle, and this allows for the application of the Pythagorean theorem. This theorem states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides. This relationship is not only theoretical but also has practical applications in various fields, such as navigation, physics, and computer graphics. In everyday life, we encounter right angles frequently, often without realizing it. For instance, when we arrange furniture in our homes, we typically place items at right angles to each other to create a pleasing and functional layout. Similarly, when drawing or painting, artists often use right angles to achieve balance and proportion in their work. Furthermore, the importance of right angles extends beyond mathematics and art. In sports, athletes often rely on their understanding of angles to improve their performance. For example, in basketball, players learn to shoot from right angles to the hoop to increase their chances of scoring. Coaches emphasize the significance of positioning and angles during training sessions, highlighting how a simple right angle can make a significant difference in the outcome of a game. In conclusion, the right angle is a vital concept in geometry that has far-reaching implications in various aspects of life. From construction to art and sports, understanding right angles enhances our ability to analyze and navigate the world around us. By recognizing the importance of this fundamental angle, we can develop a deeper appreciation for the beauty and complexity of both mathematics and the physical world. Whether we are solving a mathematical problem, designing a building, or playing a sport, the right angle remains a cornerstone of our understanding and interaction with our environment.

在几何学的世界中，直角的概念是基础性的。直角被定义为一个恰好测量为90度的角。它是数学中最重要的角之一，并在建筑、工程和艺术等多个领域发挥着关键作用。理解直角的性质可以帮助我们掌握更复杂的几何概念并解决实际问题。 为了可视化直角，想象一个正方形或矩形的角落。每个角落形成一个直角，使两条边在一个完美的垂直交点相遇。这一特性对于确保结构的稳定和平衡至关重要。例如，在建造一座建筑时，建筑师必须确保墙壁在直角处相遇，以保持结构的完整性。如果这些角不是直角，建筑可能会变得不稳定，导致潜在的危险。 此外，直角在三角学领域也很重要。它作为定义正弦、余弦和正切函数的基础，这些函数对于解决涉及三角形的问题至关重要。在一个直角三角形中，其中一个角是直角，这使得勾股定理的应用成为可能。该定理指出，在一个直角三角形中，斜边的长度的平方等于其他两个边的长度的平方之和。这个关系不仅是理论上的，而且在导航、物理和计算机图形等多个领域具有实际应用。 在日常生活中，我们经常遇到直角，往往没有意识到。例如，当我们在家中安排家具时，我们通常将物品放置在彼此的直角处，以创建一个令人愉悦和功能齐全的布局。同样，当绘画或绘图时，艺术家经常使用直角来实现作品中的平衡与比例。 此外，直角的重要性超越了数学和艺术。在体育运动中，运动员常常依赖对角度的理解来提高他们的表现。例如，在篮球中，球员学习从直角投篮以增加得分的机会。教练在训练中强调位置和角度的重要性，强调一个简单的直角如何在比赛结果中产生显著差异。 总之，直角是几何学中一个重要的概念，对生活的各个方面都有深远的影响。从建筑到艺术和体育，理解直角增强了我们分析和驾驭周围世界的能力。通过认识到这一基本角的重要性，我们可以更深入地欣赏数学和物理世界的美与复杂性。无论是在解决数学问题、设计建筑还是进行体育活动，直角始终是我们理解和与环境互动的基石。