acute angle

acute angle的音标是[əʊ"kjuːt] ，基本翻译是锐角，速记技巧是元音字母u加k音标。

Acute angle 的英文词源为拉丁语 acu-，意为“尖锐的”，因此，acute angle 指的是锐角。

变化形式：在英语中，acute angle 的变化形式为 angle，angle 是可数名词，其复数形式为 angles。

相关单词：

1. acute-angle（锐角）

2. acute-angled（锐角的）

3. acute-angled triangle（锐角三角）

4. acute-angle measurement（锐角测量）

5. acute-angle ruler（锐角尺）

6. acute-angle triangle（锐角三角形）

7. acute-angle device（锐角装置）

8. acute-angle lens（锐角透镜）

9. acute-angle corner（锐角角）

10. acute-angle surface（锐角面）

这些单词都与锐角有关，用于描述和测量锐角的各种情况。

常用短语：

1. acute angle triangle

2. acute angle quadrilateral

3. acute angle polygon

4. acute-angled angle

5. acute-angled figure

6. acute-angled shape

7. acute-angled surface

例句：

1. The acute angle of the triangle is 60 degrees.

2. The acute angles of the square add up to 360 degrees.

3. The acute angles of the pentagon are all equal.

4. The acute-angled angle of the circle is 180 degrees.

5. The acute-angled figure is a perfect geometric shape.

6. The acute-angled surface is a three-dimensional geometric object.

7. The acute angles of the rectangle are 90 degrees each.

英文小作文：

Title: The Importance of Acute Angles in Geometry

Geometry is a fundamental subject that teaches us how to think logically and creatively about shapes and figures. One of the most important angles in geometry is the acute angle, which plays a crucial role in understanding various geometric shapes and figures.

Acute angles are angles that are less than 90 degrees, and they are found in triangles, squares, pentagons, hexagons, and other polygons and polyhedra. Understanding acute angles helps us to understand how these shapes fit together and how they relate to each other. For example, in a triangle, the sum of the acute angles must add up to 180 degrees, just like in a square or rectangle.

Acute angles also help us to understand how to measure angles in three dimensions, which is essential for understanding solid objects like cubes, spheres, and cylinders. Understanding acute angles also helps us to understand how to draw perfect geometric figures and shapes, which is essential for creating beautiful artworks and designs.

In conclusion, acute angles are an essential part of geometry that teaches us how to think logically and creatively about shapes and figures. Understanding acute angles helps us to develop mathematical skills that are essential for everyday life and for further education.