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 simple polygon has a single, unbroken boundary, and it doesn't cross over itself. A complex polygon has sides that intersect, making many polygon rules invalid.Simple Polygon (this one's a Pentagon) Complex Polygon (also a Pentagon)
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, $$ S u m o f e x t e r i o r a n g l e s = 3 6 0 ^ { \circ } $$ $$ 2 1 ^ { \circ...
(Mathematics) a closed plane figure bounded by three or more straight sides that meet in pairs in the same number of vertices, and do not intersect other than at these vertices. The sum of the interior angles is (n–2) × 180° fornsides; the sum of the exterior angles is 360°. A...
Polygons are straight-sided, flat shapes that close in a space. This means every polygon: Is two-dimensional Uses only line segments to create its sides Has an interior and exteriorThe word "polygon" comes from the Greek and means "many angles," because all simple polygons have as many ...
Two circles that share the same center have radii (radius 的复数,半径) 10 meters and 20 me-ters. An ant runs along the path shown, starting at A and ending at B. How many meters does the ant run?()A B(A)10元 +20(B)10元 +30(C)10元 +40h(D)20元+4014. Four circles of ...
美[ˈpɑliˌɡɑn] 英[ˈpɒlɪɡən] n.多边形;多角形 网络正多边形;绘制正多边形;多边图 复数:polygons 权威英汉双解 英汉 英英 网络释义 polygon n. 1. 多边形;多角形a flat shape with at least three straight sides and angles, and usually five or more ...
9. A regular polygon has a sides. The size of each interior angle is seven times the size of each exterior angle.a) Find the size of each exterior angle.b) Calculate the value ofn Ans:a)__$$ 2 2 . 5 ^ { \circ } $$_|1]b)__16___[2] 相关知识点: 试题来源: 解析 22....
Some of those shapes have 3 sides. Others have 10 sides. When a shape is made of three or more sides it gets a special name. A polygon is any two-dimensional shape that has at least three connecting sides. Different polygons have different names depending on how many sides they have. ...
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...