![]() Some textbooks might write the dimensions of a rectangle as base and height instead of length and width. When we draw a figure around another figure, in such a way, that the outer figure which is surrounding the inside figure touches all its vertices, but doesn’t cross it. There is no circumvent for the inside figure to pass the outer figure. Each rectangle shape is characterized by two dimensions, its length and width. ![]() There are many rectangular objects around us. Where l is the length and w is the width of the rectangle. Circumscribed meaning is, a shape is restricted within any other shape. Learn Practice Rectangle A rectangle is a quadrilateral in which all the angles are equal and the opposite sides are equal and parallel. We have seen the definition of rectangle as a shape with four sides, with opposite sides being parallel and equal in length. The area of a rectangle is the product of its length and width. The length of the opposite sides of the rectangle is always equal to each other. Symmetry in a rectangleĪ rectangle has 2 lines of symmetry and a rotational symmetry of order 2, which means that it can be rotated in such a way that it will look the same as the original shape 2 times in 360°. A rectangle has four-sided and all the internal angles are equal to 90 degrees. A rectangle is a square when all of its sides are congruent. SquareĪ square has four congruent sides and four right angles, so it is also a rectangle. Therefore, △ABD≅△CDB by the Side-Angle-Side postulate. ∠A≅∠C since the interior angles of a rectangle are right angles. AB≅ CD and AD≅ BC since opposite sides of a rectangle are congruent. Each diagonal divides the rectangle into two congruent right triangles.ĭiagonal BD divides rectangle ABCD into triangles ABD and CDB. The two diagonals ( AC and BD in the rectangle below) are congruent and bisect each other. Angles A, B, C and D equal 90° in the rectangle shown below. ![]() Angles of a rectangleĪ rectangle contains four interior right angles. What is a rectangle in geometry with diagram - find out its definition and properties with calculation of diagonal, area and perimeter using formulas. A rectangle has four interior angles that are all exactly 90 degrees. Perimeter, P 2 (Length + Width), is the definition of perimeter. The longer sides of a rectangle are typically referred to as its length while the shorter sides are referred to as its width. The complete distance that the rectangle’s outside boundary covers is referred to as its perimeter. The opposite sides of a rectangle are congruent and parallel to each other. Many objects around us are rectangular in shape, such as a book, a phone, a door, a card, and many more. Rectangles are one of the most common shapes you will see in daily life. Home / geometry / shape / rectangle RectangleĪ rectangle is a quadrilateral with four right angles.
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