Which quadrilaterals have diagonals that intersect at right angles


which quadrilaterals have diagonals that intersect at right angles

Quadrilateral ABCD has two diagonals in AC and BD. Diagonals bisect each other at right angles. A square. Diagonals intersect at right angles. The longest .


Geometry and measurement : Module 21 Years : PDF Version of module. The material in this module is a continuation of the module, Parallelograms and Rectangles , which is assumed knowledge for the present module. Thus the present module assumes:. Logical argument, precise definitions and clear proofs are essential if one is to understand mathematics.

In Euclidean plane geometry , a quadrilateral is a polygon with four edges or sides and four vertices or corners. Sometimes, the term quadrangle is used, by analogy with triangle , and sometimes tetragon for consistency with pentagon 5-sided , hexagon 6-sided and so on. The word "quadrilateral" is derived from the Latin words quadri , a variant of four, and latus , meaning "side". Quadrilaterals are simple not self-intersecting or complex self-intersecting , also called crossed. Simple quadrilaterals are either convex or concave.

Year 10 Interactive Maths - Second Edition. A quadrilateral is a closed plane figure bounded by four line segments. For example, the figure ABCD shown here is a quadrilateral. A line segment drawn from one vertex of a quadrilateral to the opposite vertex is called a diagonal of the quadrilateral. The theorems we have proved can be used to prove other theorems.


We think you have liked this presentation., A quadrilateral from the Latin "quadri", meaning "square" and "latus", meaning "side" is a four-sided polygon a polygon is a flat, enclosed shape with multiple straight edges.

Quadrilaterals: Classification

A polygon is a flat surfaced shape. A quadrilateral is a four-sided polygon. A rectangle has two axes of line symmetry. The diagonals of a rectangle are equal and bisect each other. Bisect means cuts in half.

A quadrilateral is a polygon with four sides. A parallelogram is a quadrilateral in which both pairs of opposite sides are parallel. A rectangle is a parallelogram with four right angles, so all rectangles are also parallelograms and quadrilaterals. On the other hand, not all quadrilaterals and parallelograms are rectangles. A rhombus is a parallelogram with four congruent sides. The plural of rhombus is rhombi. I love that word.



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