颜色和形状 - 二维形状

阅读本课以学习一些二维形状的英文名称，例如“风筝”、“正方形”和“椭圆形”。

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circle

[名词]

a completely round, plain shape

圆, 圆形

Ex: The sun was a bright orange circle in the sky during the sunset .日落时，太阳是天空中一个明亮的橙色**圆圈**。

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triangle

[名词]

(geometry) a flat shape consisting of three straight sides and three angles

三角形, 三角形状

Ex: She folded the paper into a triangle for her origami project .她将纸折成**三角形**用于她的折纸项目。

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rectangle

[名词]

(geometry) a flat shape with four right angles, especially one with opposing sides that are equal and parallel to each other

矩形, 长方形

Ex: The artist used rectangles in her painting to create a sense of balance .艺术家在她的画作中使用了**矩形**来创造一种平衡感。

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kite

[名词]

a four-sided shape with two pairs of equal-length adjacent sides

风筝, 风筝形

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square

[名词]

a shape with four equal straight sides and four right angles, each measuring 90°

正方形, 方形

Ex: The tablecloth on the dining table had a beautiful square pattern.餐桌上的桌布有一个漂亮的**方形**图案。

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trapezoid

[名词]

(geometry) a flat shape with four flat sides, two of which are parallel

梯形, 不规则四边形

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parallelogram

[名词]

(geometry) any flat shape with four straight sides, the opposite sides of which are equal and parallel to each other

平行四边形, 任何有四条直边的平面形状，其对边相等且彼此平行

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rhombus

[名词]

(geometry) a flat shape with four equal sides in which opposite angles are equal

菱形, 斜方形

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polygon

[名词]

(geometry) a flat shape consisting of three or more straight sides

多边形, 由三条或更多直线边组成的平面形状

Ex: Polygons can be classified based on the number of their sides , such as pentagons and hexagons .**多边形**可以根据其边数进行分类，例如五边形和六边形。

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right triangle

[名词]

a flat geometric shape consisting of three straight sides and one right angle

直角三角形, 有一个直角的三角形

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oblique triangle

[名词]

a triangle that does not have a right angle

斜三角形, 非直角三角形

Ex: The pizza slice had an oblique triangle shape , not the usual triangular form .这块披萨片是**斜三角形**的形状，而不是通常的三角形。

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scalene triangle

[名词]

a type of triangle that has all three sides of different lengths

不等边三角形, 三边长度都不相等的三角形

Ex: The roof of the house had a distinct scalene triangle design .房子的屋顶有一个独特的**不等边三角形**设计。

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isosceles triangle

[名词]

a type of triangle that has two sides of equal length and two angles of equal measure

等腰三角形

Ex: The sum of the interior angles of an isosceles triangle is always 180 degrees .**等腰三角形**的内角和总是180度。

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equilateral triangle

[名词]

a type of triangle with all three sides of equal length

等边三角形, 等边三角形

Ex: The traffic sign warned of an upcoming intersection with an equilateral triangle symbol .交通标志警告即将到来的交叉路口有一个**等边三角形**符号。

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acute-angled triangle

[名词]

a type of triangle in which all three angles are less than 90 degrees

锐角三角形, 有锐角的三角形

Ex: A mountain peak formed an acute-angled triangle on the horizon .一座山峰在地平线上形成了一个**锐角三角形**。

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obtuse-angled triangle

[名词]

a type of triangle that has one angle greater than 90 degrees

钝角三角形, 有一个钝角的三角形

Ex: The chef sliced the pizza into obtuse-angled triangle portions for sharing .厨师将披萨切成**钝角三角形**的份额以供分享。

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rhomboid

[名词]

(geometry) a parallelogram with four straight sides and no right angles

菱形, 没有直角的平行四边形

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semicircle

[名词]

any half of a circle

半圆, 半圆形

Ex: The audience formed a semicircle around the street performer .观众在街头艺人周围形成了一个**半圆**。

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lozenge

[名词]

(geometry) a figure with four sides and two opposite angles more than 90° and two of less than 90°

菱形, 斜方形

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oblong

[名词]

a rectangular figure that has unequal adjacent sides with arched angles

长方形,长椭圆形, round-edged rectangle

Ex: The garden featured an oblong pond with curved corners, creating a peaceful and inviting atmosphere.花园里有一个**椭圆形**的池塘，边角圆润，营造出一种宁静而诱人的氛围。

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oval

[名词]

a shape that is wide in the middle and narrow at both ends

椭圆形, 椭圆形状

Ex: In geometry , an oval is often described as an ellipse with varying lengths .在几何学中，**椭圆形**通常被描述为长度不同的椭圆。

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颜色和形状 - 二维形状