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The line segment joining two non-adjacent vertices of a polygon is called a diagonal of the polygon. When all the sides are equal in length, the polygon is said to be a regular polygon. E.g., square. Otherwise, it is an irregular polygon. A triangle is a polygon with a minimum number of sides, which is 3.
Jan 2, 2022 · edit source. Any shape that can be drawn in the plane is called a plane figure. A shape with only straight sides as edges is called a polygon (POL-ee-gone). Polygons must have at least three sides, thus the polygons with the fewest number of sides are triangles. Circles and semicircles are not polygons because they have curved sides.
If the translation vector is perpendicular to the planes of the bases, the cylindric solid is a right cylinder or a right prism, otherwise it is oblique. Prisms are named by the shape of their base. The non-base faces of a prism are known as lateral faces which meet at lateral edges. A right prism whose base is a regular polygon is a regular prism.
Base of a Prism One of two polygons that lie in parallel planes. Base of a Pyramid A polygon that bounds part of the pyramid. Center of a Sphere The fixed point in the interior of a sphere from which all points on the sphere are equidistant Circular Cone A cone whose base is a circle Circular Cylinder A cylinder whose base is a circle. Concave ...
2. Sum of the exterior angles of polygons. Sum of the exterior angles of polygons = 360° The sum will always be equal to 360 degrees, irrespective of the number of sides it has. For example: Consider the following polygon with 5 sides. Here, ∠m + ∠n + ∠o + ∠p + ∠q = 360° Angles in Regular Polygon. In a regular polygon, all its ...
- A diagonal of a polygon is a line segment connecting two non-consecutive vertices (corners).
- A Regular polygon has all sides of equal length and each angle also measures equal.
- Polygon is a closed shape made up of straight-line segments. The circle is a closed figure but it is made of a curve. So, a circle is not a polygon.
- A polygon must have a minimum of three sides.
- No, polygons have the same number of sides and angles because they are closed figures with non-intersecting lines.
Circles, Ellipses, Parabolas and Hyperbolas. Our page on Polygons covers shapes made with straight lines, also known as ‘plane shapes’. This page explains more about shapes with curves, especially two-dimensional ones. Two-dimensional curved shapes include circles, ellipses, parabolas, and hyperbolas, as well as arcs, sectors and segments.
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Facts about Plane Shapes. Plane shapes, also known as 2D shapes, are flat figures that exist in a two-dimensional space, with length and width but no depth. A polygon is a closed plane figure with straight sides. Examples of polygons include triangles, quadrilaterals, pentagons, hexagons, and so on. Circles are another type of plane shape.
