![]() A rectangle is a cyclic quadrilateral – that is, every one of its points would fit on the edge of a circle. ![]() The properties of rectangles are as follows: The opposite sides of a rectangle are parallel and equal, and diagonals bisect each other. A rectangle is a quadrilateral with four sides, four vertices, and four angles. Rectangles are parallelograms with right angles. The radius of the incircle is equal to half of the side of the square. An incircle can be formed with its centre at the point of bisection and its circumference touching the sides of the square.The diagonals of the square are diameters of the circumcircle. A circle can be formed with its centre at the point of bisection and its circumference passing through the four vertices of the square.Each diagonal of a square divides the square into two equal, isosceles triangles.A square is a rectangle with its two adjacent sides equal and is a parallelogram with all four internal angles equal to 90° and adjacent sides equal in length.So, the four vertices of the square are equidistant from the point of bisection. Diagonals of a square are perpendicular bisectors of each other.All angles of a square measure 90 degrees.Quadrilaterals are polygons with four sides and four angles. Square is a quadrilateral with four equal sides and angles. The combination of these three categories gives rise to seven types of triangles: equilateral, right isosceles, obtuse isosceles, acute isosceles, right scalene, obtuse scalene, and acute scalene. Scalene Triangle: No two sides are equal.Isosceles Triangle: Two sides are equal.Equilateral Triangle: All sides are equal.There are 3 types of triangles based on their sides: Obtuse Angled Triangle: One angle is greater than 90.Right Angled Triangle: One angle is exactly 90.Acute Angled Triangle: All angles are less than 90.There are 3 types of triangles based on their angles: This characteristic is known as the triangle’s angle sum property. The fact that a triangle’s internal angles add up to 180 degrees is its most crucial characteristic. Triangle in geometry is a three-sided polygon with three edges and three vertices. A tangent to a circle is a line that intersects a circle at exactly one point. A segment of a circle is a portion of the circle enclosed by a chord and an arc. The sector of a circle is the area circumscribed by two radii and the corresponding arc in a circle like the pizza slice in pizza. An arc of a circle is related to a curve, which is a section/portion of its circumference. Hence, the diameter is essentially the longest chord. If it passes through the centre it is equal to the diameter of the circle. A chord may or may not pass through the centre. The circumference of the circle is the length of the boundary or the perimeter of the circle.Ī chord of a circle is a straight line segment whose endpoints both lie on a circular arc thus dividing a circle into two segments. The diameter is twice the radius and it is the length of the line through the centre that touches two opposite points on the edge of the circle. The radius of the circle is the length between the centre of the circle to any location on its boundary. Thus, a circle is essentially a polygon where each point represents a side. If we gradually increase the number of sides in a regular polygon, it starts to form a circle. Every point on the curved line is at the same distance from the centre. The various types of 2D Shapes names are given below:Ĭircle is a curved line that runs around a centre point. Since the circumference of the circle is equidistant from the centre, we measure it using the two parameters centre and diameter or radius. ![]() A circle is also a 2D shape, but a circle has a curved edge. Thus, they cannot be physically held, because they have no depth.Ī paper is the best example of 2D Shapes. Shapes that are in 2D are completely flat. 2D shapes have 2 dimensions and they can be measured by their length and width or length and height.
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