sided polygon are true?( ) Ⅰ. Each exterior angle is 30∘. Ⅱ. Each interior angle is 150∘. Ⅲ. The number of axes of reflectional symmetry is 6. 下列有关正12边形的叙述,何者正确?( ) Ⅰ. 每一外角均为30∘. Ⅱ. 每一内角均为150∘....
sided polygon is 4 times an exterior angle of the polygon, which of the following is/are true?( ) Ⅰ. The value of n is 10. Ⅱ. The number of diagonals of the polygon is 10. Ⅲ. The number of folds of rotational symmetry of the polygon is 10....
1英语翻译(a)Each exterior angle of an n-sided polygon is 24°.Calculate n.(b)The sides of a regular polygon are produced in order .It is found that each interior angle exceeds each exterior angles by 140°.Calaculate the number of sides of the polygon . 2英译汉 帮忙翻译一下~~ 追加...
【题目】Which of the following statements about a regular12-sided polygon are true?(1. Each exterior angle is30°.l. Each interior angle is150°.ll. T he number of axes of reflectional symmetry is6.下列有关正12边形的叙述,何者正确?()1.每一外角均为30°..每一内角均为150°..反射对称...
百度试题 结果1 题目【题目】A k-sided polygon has 5k+15 diagonals. Find k.一个k边形有5k+15条对角线,求k. 相关知识点: 试题来源: 解析 【解析】15. 反馈 收藏
Thus, for each choice of 8 vertices satisfying the given conditions, we cancreat an ordered 8-tuple such that the j" coordinate is the label(0, 1, or 2) of the vertex. se-lected from T,. Furthermore, the condition that no arc has length 3 reduces to the statementthat no two ...
16. How many diagonals does a 12-sided regular polygon have? A regular polygon has sides of equal length and equal angles where two sides meet. A diagonal is a line which connects any two corners of the polygon, but which is not a side of the polygon.E(A)27(B)35(C)44(D)54(E)...
Find n if an angle of a regular n-sided polygon is 156∘.一个正n边形的内角均为156∘,求n.
2. (a) Calculate the size of an interior angle in a regular 12-sided polygon.(b) Do regular 12-sided polygons tessellate?You must give a reason for your answer. 相关知识点: 试题来源: 解析 2(a)(12-2)×180 ÷12 150(°) (b)No AND a reason, e.g. '150 not a factor or 360'...
Polygons are named on the basis of thenumberof sides it has.Polygons are generally denoted by n-gon where n represents the number of sides it has, For example, a five-sided polygon is named as 5-gon, a ten-sided is named as 10-gon, and so on. ...