semicircle

简明释义

英[ˈsemisɜːkl]美[ˈsemisɜːrkl]

n. 半圆，半圆形

复 数 s e m i c i r c l e s

英英释义

单词用法

同义词

反义词

例句

1.We sat in a semicircle facing the teacher.

我们面对着老师坐成半圆形。

2.They sit cross-legged in a semicircle and share stories.

他们盘着腿围成半圆坐在一起讲故事。

3.An air bubble ascending from the ocean floor contorts and twists into a semicircle as a wave breaks in the background.

当波浪在背景中破碎时，从海底升起的气泡扭曲成半圆形。

4.Result shows that the trunk was short and the canopy shaped as the natural semicircle.

结果表明，主干较矮，树冠为自然半圆头形，冠幅略大于冠厚。

5.It's called the Ring of Fire, a semicircle of violently shifting plates and volcanoes that runs along the edges of the Pacific Ocean.

这里被称为火圈带，一个由剧烈移动的板块和火山组成的半圆形区域，分布在太平洋沿岸。

6.The village was formed of semicircle huts.

这个村庄是由半圆形的茅舍组成的。

7.She found that people were gathering around her in a semicircle as she read.

她发现在她阅读的时候人们以半原形状围在她周围。

8.The artist painted a beautiful landscape inside a semicircle frame.

艺术家在一个半圆框架内画了一幅美丽的风景画。

9.The students arranged their chairs in a semicircle to facilitate discussion.

学生们把椅子排成一个半圆，以便于讨论。

10.In the park, there is a large bench shaped like a semicircle for people to sit and enjoy the view.

公园里有一张大型的长椅，形状像一个半圆，供人们坐着欣赏风景。

11.During the math class, we learned how to calculate the area of a semicircle.

在数学课上，我们学习了如何计算半圆的面积。

12.The stage was designed in a semicircle to provide better visibility for the audience.

舞台设计成一个半圆，以便让观众更好地看到。

作文

In geometry, a semicircle is defined as half of a circle. It is formed when a circle is divided along its diameter. The concept of a semicircle is not only essential in mathematics but also has practical applications in various fields such as architecture, engineering, and art. Understanding the properties of a semicircle can enhance our comprehension of circular shapes and their implications in real-world scenarios.A semicircle consists of a curved line, which is half the circumference of a full circle, and a straight line, which is its diameter. The radius of a semicircle is the distance from the center to any point on the curved edge. This simple yet elegant shape can be seen in many places around us; for instance, the design of bridges often incorporates arches that resemble semicircles for structural integrity and aesthetic appeal.One interesting property of a semicircle is that any angle inscribed in a semicircle is a right angle. This fact is crucial in various mathematical proofs and constructions. For example, if we draw a triangle where one side is the diameter of a semicircle and the opposite vertex lies on the curved edge, we can confidently say that the angle opposite to the diameter is 90 degrees. This property is widely used in trigonometry and can help in solving complex problems involving angles and distances.In addition to its geometric significance, the semicircle also appears in art and design. Artists often use semicircles to create visually appealing compositions. For instance, in modern architecture, the use of semicircular windows or doorways can soften the harsh lines of rectangular structures, creating a harmonious balance. This blend of functionality and aesthetics showcases the versatility of the semicircle in creative expressions.Furthermore, the concept of a semicircle extends beyond physical shapes. In statistics, a semicircle can represent data distributions or probabilities. When visualizing data, a semicircle can help illustrate trends and relationships between variables. For example, if we were to graph the distribution of scores in a class, a semicircular representation could effectively demonstrate the concentration of scores around a mean value.In conclusion, the semicircle is a fundamental concept that bridges the gap between mathematics, art, and practical applications. Its unique properties, such as the inscribed angle theorem, make it a vital element in geometry. Moreover, its aesthetic appeal allows it to find a place in design and architecture. By understanding the semicircle, we not only appreciate its beauty but also recognize its importance in various disciplines. Whether we encounter it in a math classroom, an art gallery, or a structural blueprint, the semicircle continues to play a significant role in shaping our world.

在几何学中，semicircle被定义为一个圆的一半。它是在圆沿直径划分时形成的。semicircle的概念不仅在数学中至关重要，而且在建筑、工程和艺术等多个领域都有实际应用。理解semicircle的性质可以增强我们对圆形及其在现实世界中含义的理解。一个semicircle由一条弯曲的线组成，这条线是完整圆周的一半，还有一条直线，即它的直径。semicircle的半径是从中心到弯曲边缘上任意一点的距离。这种简单而优雅的形状在我们周围的许多地方都可以看到；例如，桥梁的设计通常采用类似semicircles的拱形，以增强结构的完整性和美观性。semicircle的一个有趣性质是，任何在semicircle内的角都是直角。这一事实在各种数学证明和构造中至关重要。例如，如果我们画一个三角形，其中一边是semicircle的直径，而对面的顶点位于弯曲边缘上，我们可以自信地说，直径对面的角是90度。这个性质在三角学中被广泛使用，可以帮助解决涉及角度和距离的复杂问题。除了其几何意义，semicircle在艺术和设计中也出现得很频繁。艺术家们经常使用semicircles来创建视觉上吸引人的作品。例如，在现代建筑中，使用semicircular窗户或门口可以柔化矩形结构的尖锐线条，创造出和谐的平衡。这种功能性与美学的结合展示了semicircle在创作表达中的多样性。此外，semicircle的概念超越了物理形状。在统计学中，semicircle可以代表数据分布或概率。在可视化数据时，semicircle可以帮助说明变量之间的趋势和关系。例如，如果我们要绘制一个班级成绩的分布图，semicircular的表示方式可以有效地展示分数围绕平均值的集中情况。总之，semicircle是一个基本概念，它在数学、艺术和实际应用之间架起了桥梁。它独特的性质，如内接角定理，使其成为几何学中的重要元素。此外，它的美学吸引力使其在设计和建筑中占有一席之地。通过理解semicircle，我们不仅欣赏其美丽，还认识到它在多个学科中的重要性。无论我们是在数学课堂、艺术画廊还是结构蓝图中遇到它，semicircle继续在塑造我们的世界中发挥着重要作用。