acute angle是什么意思？ acute angle翻译(中文文)：锐角

怎么读（音标）：/əˈkjuːt ˈæŋɡl/

用法：锐角是指两条直线或者线段的夹角小于90度的角。在几何学中，锐角是三角形的一种类型，它的两条边都比直角小。

例句1：The angle formed by the hands of a clock at 3 o'clock is an acute angle.

钟表在3点钟时指针所形成的角是一个锐角。

例句2：In an equilateral triangle, all three angles are acute angles.

在等边三角形中，所有三个角都是锐角。

例句3：The acute angle between the two walls made it difficult to fit the furniture in the corner.

两面墙之间的锐角使得将家具放进墙角变得困难。

例句4：The pilot had to make an acute angle turn to avoid hitting the mountain.

飞行员不得不进行一个锐角转弯来避免撞上山峰。

例句5：The teacher used a protractor to measure the acute angles in the students' drawings.

老师使用量角器来测量学生作品中的锐角。

同义词及用法：

1. Sharp angle: This is another term used to describe an acute angle, as it conveys the idea of a small and pointed angle.

2. Narrow angle: This can also be used to refer to an acute angle, as it emphasizes that it is smaller than other angles.

3. Acute triangle: This is a type of triangle where all three angles are acute angles.

4. Pointed angle: This is a descriptive term for an acute angle, as it emphasizes the sharpness of the angle.

5. Less than 90 degrees: This phrase can be used to describe an acute angle, as it is the defining characteristic of this type of angle.

编辑总结：

锐角是指两条直线或者线段的夹角小于90度的角。它是三角形的一种类型，具有两条边都比直角小的特点。锐角在日常生活中经常出现，比如钟表上指针所形成的角、家具放置在墙角时遇到的问题等。同义词包括sharp angle、narrow angle、acute triangle等，它们都强调了锐角的特点。要注意与其他类型的三角形进行区分，以免混淆。