Geometry Maths

Learn Basic Geometry

Geometry
Written by Mary Christina

Definition: Geometry is all about the shapes and their properties.

Square:

Geometry - Square Diagram Explaination

Definition:

A four sided flat shape having straight sides having equal length and every angle is a right angle.

Properties:

  • All four sides are equal
  • The opposite sides of a square are both parallel and equal
  • The diagonals of a square are equal
  • The diagonals of a square bisect each other at 90
  • The diagonals of a square bisect its angles
  • ‘The diagonals are perpendicular
  • All four angles of a square are equal

Rectangle:

Geometry - Rectangle Diagram Explainations

Definition:

A four sided flat shape with straight sides where all the interior angles are right angles (90) and also opposite sides are parallel and of equal length.

Properties:

  • Opposite sides of a rectangle are equal
  • Opposite sides of a rectangle are parallel
  • Opposite sides of a rectangle are congruent
  • Opposite angles of a rectangle are congruent
  • Consecutive angles of a rectangle are supplementary
  • The diagonals of a rectangle bisect each other
  • All four angles of a rectangle are right angles
  • The diagonals of a rectangle are congruent

Parallelogram:

Geometry - Parallelogram Diagram Explainations

Definition:

A four sided flat plane with straight sides where opposite sides are parallel and equal.

Properties:

  • Opposite sides of a parallelogram are congruent .
  • Opposite angles of a parallelogram are congruent
  • Consecutive angles of a parallelogram are supplementary.
  • If one angle of a parallelogram is right angle, then all angles are right.
  • The diagonals of a parallelogram bisect each other.
  • Each diagonal of a parallelogram separates it into two congruent triangles.

Rhombus:

Geometry - Rhombus Diagram Explainations

Definition:

A four sided flat shape with straight sides where all sides have equal length and also opposite sides are parallel.
It is a type of parallelogram

Properties:

  • All sides of a rhombus are equal
  • The opposite sides of a rhombus are equal
  • Two pairs of opposite sides are equal and congruent
  • Opposite angles of a rhombus are congruent
  • The diagonals of a rhombus bisect each other at 90
  • The consecutive angles of a rhombus are supplementary

About the author

Mary Christina

Mary Christina from Chennai, India. She has completed Master Degree in Mathematics and she loves to teach and share about her knowledge in maths for High School and College Students...