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。
题目A polygon cannot have ( ) sides. A: 2 B: 3 C: 4 D: 21 相关知识点: 试题来源: 解析 AA polygon must have 3 or more sides.一个多边形不可能有( )个边.A. 2B. 3C. 4D. 21多边形必须具有3个以及以上的边.故选A. 反馈 收藏
With the help of educational experts, we explain how polygons are taught in primary school, with examples of regular and irregular versions of each multi-sided shape. What is a polygon? A polygon is a flat, two-dimensional (2D) shape with straight sides that is fully closed (all the ...
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 ...
Francine has taught elementary school and is currently an elementary Math specialist. She has two Master's degrees: Curriculum and Instruction in Math K-14 and Educational LeadershipCite this lesson A regular polygon has sides that have the same length and angles that have equal measures. Learn ...
题目 The number of sides in a regular polygon is 15 , then measure of each exterior angle is___22.正多边形的边数为15,则每个外角的度量为_(a) 24°(b) 36°(c)20°(d)18°(a)(a) 相关知识点: 试题来源: 解析(a) 对于任意正多边形,所有外角的和为360°,因此每个外角的度数为360°除以...
213420A polygon has n sides. Two of its exterior angles are 21° and 54°. The remaining exterior angles area$$ 1 5 ^ { \circ } $$d each. Find (a) the value ofn, $$ S u m o f e x t e r i o r a n g l e s = 3 6 0 ^ { \circ } $$ $$ 2 1 ^ { \circ...
A polygon is a shape that has any number of straight sides, such as a triangle, square or hexagon. The apothem refers to the length of the line the connects the center of a regular polygon to the midpoint of any of the sides. A regular polygon has all congruent sides; if the polygo...
Identify the polygon that has vertices A(−10,−1),P(−7,3),E(−3,0), and X(−6,−4), and then find the perimeter and area of the polygon. Square and its properties A polygon is a closed planner geometry that has...
Types of Polygon The polygons can be classified on the basis of the number of sides and angles it has: Classification on the basis of sides: Regular and Irregular Polygons: Regular Polygons– Polygons that have equal sides and angles are regular polygons. ...