acute triangle
21Law of cosines — This article is about the law of cosines in Euclidean geometry. For the cosine law of optics, see Lambert s cosine law. Figure 1 – A triangle. The angles α, β, and γ are respectively opposite the sides a, b, and c …
22Circumscribed circle — Circumscribed circle, C, and circumcenter, O, of a cyclic polygon, P In geometry, the circumscribed circle or circumcircle of a polygon is a circle which passes through all the vertices of the polygon. The center of this circle is called the… …
23Nine-point circle — The nine points In geometry, the nine point circle is a circle that can be constructed for any given triangle. It is so named because it passes through nine significant points defined from the triangle. These nine points are: The midpoint of each …
24List of geometric shapes — This is a list of geometric shapes.Generally composed of straight line segments* polygon ** concave polygon ** constructible polygon ** convex polygon ** cyclic polygon ** decagon ** digon ** dodecagon ** nonagon ** equiangular polygon **… …
25Ono's inequality — In mathematics, Ono s inequality is a theorem about triangles in the Euclidean plane. In its original form, as conjectured by T. Ono in 1914, the inequality is actually false; however, the statement is true for acute triangles, as shown by… …
26orthocenter — noun the intersection of the three lines that can be drawn flowing from the three corners of a triangle to a point along the opposite side where each line intersect that side at a 90 degree angle; in an acute triangle, it is inside the triangle;… …
27Barbaric Machine Clan Gaiark — The nihongo|Barbaric Machine Clan Gaiark|蛮機族ガイアーク|Bankizoku Gaiāku are the fictional antagonists from Engine Sentai Go onger . They are machine men from the Machine World who are last of their kind and desire to pollute the Earth. Gaiark bases… …
28Byzantine dress — changed considerably over the thousand years of the Empire, but was essentially conservative. The Byzantines liked colour and pattern, and made and exported very richly patterned cloth, woven and embroidered for the upper classes, and resist dyed …
29List of Welcome to Paradox episodes — This is a list of episodes for the United States science fiction television series Welcome to Paradox. Episode list Season 1: 1998 # Title Directed by Written by Original air date 01 Our Lady Of The Machine Clark Johnson Alan Dean Foster, Miguel… …
30Spitzwinkliges Dreieck — Ein spitzwinkliges Dreieck Ein spitzwinkliges Dreieck ist ein Dreieck, bei dem alle Winkel kleiner als 90° sind. Die drei Seiten müssen nicht unterschiedlich lang sein. Ausgezeichnete Punkte Beim spitzwinkligen Dreieck liegen Höhenschnittpunkt,… …
