acute triangle wikipedia - EAS
- An acute triangle is a type of triangle in which all the three internal angles of the triangle are acute. Acute triangles are also called acute-angled triangles. Even though the length of the sides of acute triangles differs, the interior angles are never more than 90°.
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檢視所有 Wikipediahttps://en.wikipedia.org/wiki/Acute_and_obtuse_trianglesAn acute triangle (or acute-angled triangle) is a triangle with three acute angles (less than 90°). An obtuse triangle (or obtuse-angled triangle) is a triangle with one obtuse angle (greater than 90°) and two acute angles. Since a triangle's angles must sum to 180° in Euclidean geometry, no Euclidean triangle can … 查看更多內容
Sides
If angle C is obtuse then for sides a, b, and c we have
$${\displaystyle {\frac {c^{2}}{2}}<a^{2}+b^{2}<c^{2},}$$
with the left inequality approaching equality in the … 查看更多內容Triangles with special names
The Calabi triangle, which is the only non-equilateral triangle for which the largest square that fits in the interior can be positioned in … 查看更多內容CC-BY-SA 授權下的維基百科文字- https://en.wikipedia.org/wiki/Triangle
The terminology for categorizing triangles is more than two thousand years old, having been defined on the very first page of Euclid's Elements. The names used for modern classification are either a direct transliteration of Euclid's Greek or their Latin translations.
Ancient Greek mathematician Euclid defined three types of triangle according t…Wikipedia · CC-BY-SA 授權下的文字- Edges and vertices: 3
- Type: Regular polygon
- Internal angle (degrees): 60°
Acute Triangle Wikipedia 的圖片
bing.com/imagesAltitude (triangle) - Wikipedia
https://en.wikipedia.org/wiki/Altitude_(triangle)網頁For acute triangles the feet of the altitudes all fall on the triangle's sides (not extended). In an obtuse triangle (one with an obtuse angle), the foot …
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File:Acute Triangle.svg - Wikimedia Commons
https://commons.wikimedia.org/wiki/File:Acute_Triangle.svg網頁File:Acute Triangle.svg. From Wikimedia Commons, the free media repository. File. File history. File usage on Commons. File usage on other wikis. Metadata. Size of this PNG …
- https://www.splashlearn.com/math-vocabulary/geometry/acute-triangle
網頁A triangle is a basic polygon with three sides and three vertices. Since it has three sides, it has three interior angles. An angle that measures between 0° and 90° is called an acute angle. An acute triangle is a type …
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What is an acute triangle? - Definition, Types & Resources - Twinkl
https://www.twinkl.com/teaching-wiki/acute-triangle網頁The area of an acute triangle is actually the amount of space that is taken in a two-dimensional surface. It can be calculated in three cases: if the lengths of its base and …
- https://en.wikipedia.org/wiki/Isosceles_triangle
網頁convex, cyclic. In geometry, an isosceles triangle ( / aɪˈsɒsəliːz /) is a triangle that has two sides of equal length. Sometimes it is specified as having exactly two sides of equal …
- https://en.wikipedia.org/wiki/Acute
網頁Acute may refer to: Science and technology Acute angle Acute triangle Acute, a leaf shape in the glossary of leaf morphology Acute (medicine), a disease that it is of short …
- https://en.wikipedia.org/wiki/Right_triangle
網頁A right triangle ( American English) or right-angled triangle ( British ), or more formally an orthogonal triangle, formerly called a rectangled triangle [1] ( Ancient Greek: …
acute triangle - Wiktionary
https://en.wiktionary.org/wiki/acute_triangle網頁acute triangle (plural acute triangles) A triangle all of the angles of which are acute. Synonyms [] acute-angled triangle Translations [] triangle all of the angles of which are …
