A polygon has 9 sides. The sum of its interior angles is: A. 1260 degrees B. 1440 degrees C. 1620 degrees D. 1800 degrees 相关知识点: 试题来源: 解析 A。根据公式 (n - 2) × 180,边数 n = 9,内角和为 (9 - 2) × 180 = 1260 度。
A polygon with eight sides is called: A. a hexagon B. a heptagon C. an octagon D. a nonagon 相关知识点: 试题来源: 解析 C。本题考查多边形的名称。有八条边的多边形称为八边形,即 octagon ,所以选 C 。选项 A 是六边形。选项 B 是七边形。选项 D 是九边形。
A regular octagon is a polygon that has 8 sides of the same length and 8 interior angles of the same size. Find the measure of each interior angle of a regular octagon. 答案 135∘相关推荐 1A regular octagon is a polygon that has 8 sides of the same length and 8 interior angles of...
This article describes how a biological modelling technique, originally applied to random cell division in a plane, may be adapted as a mathematical model for the generation of a set of random polygons. The mean number of sides of a randomly chosen polygon from this set is then determined ...
213420A polygon has n sides. Two of its exterior angles are 21°and 54° The remaining exterior angles are 15 cach. Find (a) the value of n, Sum of exterior an g|cs=360° 21°+54°+(n-2)15=360° n-21 Answer n+...21... 121 (b) the sum of interior angles of the poly...
A regular polygon has equal ___. A. sides and angles B. areas and perimeters C. radii and diameters D. vertices and E. dges 相关知识点: 试题来源: 解析 A。本题考查正多边形的定义。正多边形具有相等的边和角。选项 B 面积和周长不一定相等,选项 C 半径和直径不一定相等,选项 D 顶点和边...
A. It is a pentagon with five sides. B. It is a heptagon with seven sides. C. It is an octagon with eight sides. D. It is a hexagon with six sides. 相关知识点: 试题来源: 解析 D。本题考查多边形的名称。A 选项是五边形;B 选项是七边形;C 选项是八边形;D 选项是六边形,与题目中...
百度试题 结果1 题目What is a polygon with six sides called?A:HexagonB:OctagonC:TrapezoidD:Pentagon 相关知识点: 试题来源: 解析 A Hexagon 反馈 收藏
A regular polygon has equal sides and equal angles. Which of the following is a regular polygon? A. rectangle B. square C. trapezoid D. parallelogram 相关知识点: 试题来源: 解析 B。A 选项“rectangle”长方形,对边相等,四个角相等但不是所有边都相等;B 选项“square”正方形,四条边相等,四个...
结果1 题目 9. A regular polygon has n sides. The size of each interior angle is seven times the size of each exterior angle a) Find the size of each exlerior angle.b) Calculate the value of n Ans: a)22.5°1b)16[2] 相关知识点: 试题来源: 解析 22.5°16 反馈 收藏 ...