It is an 11 sided plane figure in which all the angles are right size and its shape resembles that of an egg.Ī diamond shape is a quadrilateral with both pairs of opposite sides passing through same two points. A regular dodecagon has all the sides equal, and all its interior angles measure 116o. It is a 12-sided figure in which all the angles are right angle and its shape resembles that of an egg. In other words, it can be said as a ten sided polygon or 10-gon. A regular decagon has all the sides equal, and all its interior angles measure 108o. It is a ten sided figure in which all the angles are right angle and its shape resembles that of an egg. It can be constructed by joining the midpoints of the sides of hexagon. It has nine vertices and of course nine edges of equal length. It looks like a stop sign with straight arms on each side equally spaced apart from one another.Ī nonagon is also called as enneagon. An heptagonal polygon is a polygon whose seven sides are congruent and the included angle at each vertex measures 110o. It is a seven sided plane figure in which all the angles are right angle and its shape resembles that of an egg. In other words, it is a closed figure constructed from 3 line segments by connecting each end point to every other end point on those lines. A regular hexagon has all the angles of equal size and all the side lengths are equal length. In other words, an exagon is a closed figure constructed from 3 line segments by connecting each end point to every other end point on those lines. You can remove any number of points from a regular exagon and still get a other regular exagons as it is made up of indivisible lines. The line segment joining the mid-points of the non-parallel sides is called a lateral by both bases.Ī regular exagon has equal sides and all the angles are right angle. It is quadrilateral with only one pair of parallel sides that are called bases. It has two sets of parallel sides that are perpendicular each other. It is a four sided plane figure in which all the sides are equal in length and all the angles between them are of right size. There are 6 types of triangles namely equilateral, isosceles, right angled, obtuse, acute and scalene.Ī parallelogram is a four sided plane figure in which opposite sides are parallel to each other and all the angles between them are right angles. A triangle must have 3 vertices or corners. In other words, square is rectangle that have only two sets of parallel sides.Ī triangle is a planar shape with three line segments which enclose a space outside it. It is a four sided plane figure in which two pairs of opposite sides are of equal length and all the angles between them are right angle. In other words, square is rectangle that have four equal sides. It is a four sided plane figure in which all the sides are of equal length and all the angles are of right size. In geometry, circle is considered as a set of points that are equidistant from a point. List of Geometric Shape NamesĬircle is the line which is drawn from the middle of a circle that touches its circumference equally. So it is a must to have a good grip on these basic shape names. It is important to know that the words Hexagonal, Rhombus, and Circle are very common in competitive exams. Here in this lesson, we will study some important geometric shape names in English.
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