inscribed circle 内接圆,内切圆 inscribed triangle 内接三角形 in a circle 在原地打转转,毫无进展,停滞不前(有目的地)以圆周方式运行 altitude of a triangle 三角形的高线 vertex of a triangle 三角形的顶点 solving a triangle 解三角形 excess of a triangle 三角角盈 相似...
网络三角形内切圆;三角形的内切圆
【题目】 A circle is inscribed in a triangle wit h sides of lengths of 8,17,and 19. Let the seg ments determined by the point of tangency on the side of length 8 be w and r,with w r.Find the ratio of w to r.a)3:5b)5:7c)2:3d)1:5e)7:9麻烦另付翻译 ...
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In Figure, is a triangle, , , . The circle in the figure is the inscribed circle of , and is the in-centre of the triangle. If the inscribed circle intersects at , find the length of . (Express your answer in the form of , where , and are all integers.)图中,为三角形,、、,图...
convergence of geometrical propertiescombinations of fields in mathematicsWe present a geometrical investigation of the process of creating an infinite sequence of triangles inscribed in a circle, whose areas, perimeters and lengths of radii of the inscribed circles tend to a limit in a monotonous ...
An online calculator to calculate the radius R of an inscribed circle of a triangle of sides a, b and c. This calculator takes the three sides of the triangle as inputs, and uses the formula for the radius R of the inscribed circle given below. ...
百度试题 结果1 题目The circle inscribed in a triangle has a radius of 3 cm. Express the are a of the triangle using a, b, c. 相关知识点: 试题来源: 解析 r=3cmr=2S/(a+b+c)S=1.5(a+b+c) 反馈 收藏
单词 inscribed circle of a spherical triangle 释义 随便看 近似极大似然递推估计 近似极限 近似点谱 近似等号 近似算法 近似线性化法 近似诣零根 近似诣零理想 近似连续 近似问题 近似黄金分割法 近地点 近性边缘紧空间 近日点 近景摄影测量 近期数学出版物(美) 近标准点 近点年 近点年 近点月 近点月 近...
12. Circle O of radius 45 is inscribed in equilateral triangle ABC. Circle P is tangent to circle O and segments AB and BC. Find the area of circle P.(A) 245π(B) 625π(C) 225(D) 225π(E) 700相关知识点: 试题来源: 解析 (D). 分析 本题主要通过构建直角三角形,利用等边三角形的...