解析 C。“A circle is inscribed in a triangle.”表示“一个圆内切于一个三角形”,那么反过来就是“A triangle is circumscribed about a circle.”(一个三角形外接于一个圆)。选项 A 表述错误;选项 B 是“一个圆外接于一个三角形”;选项 D“tangent”表示“相切的”。
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...
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
In triangle PQR, PQ = 24 cm, QR = 7 cm and∠PQR=90∘. Find the radius of the inscribed circle. View Solution Construct a triangle PQR given that PQ = 5 cm, QR = 4 cm and PR = 3 cm . Measure∠PRQand name the triangle. ...
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 ...
inscribed triangle 内接三角形 inscribed figure 内接形 相似单词 inscribed adj. 记名的 circle n. 1.圆,圆周;圈,环状物 2.圈子,界,社会,集团 3.圆状物,圆形;圆形排列 4.环;环状物(如环形路,耳环,戒指,花冠,光环等) 5.(剧院的)楼座,楼厅包厢 6. circle in 外光圈打开 turning circle n. (车...
[translate] a1. A circle of radius 4 units is inscribed in a triangle. 1. 半径4单位圈子是题写的在三角。[translate]
awrong number,says a familiar voice 错误号码,认为熟悉的声音[translate] a1. A circle of radius 4 units is inscribed in a triangle. A point of tangency of the circle with a side of the triangle divides the side into lengths of 6 and 8 units. What are the lengths of the remaining two...
Dynamic investigation of triangles inscribed in a circle, which tend to an equilateral triangleGeometrical investigative problemsconvergence of geometrical propertiescombinations of fields in mathematicsWe present a geometrical investigation of the process of creating an infinite sequence of triangles inscribed ...