Concepts and theories regarding trapeziums or trapezoids

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A trapezoid, otherwise called a trapezium, is a two dimensional shape having 4 straight sides, with one sets of parallel sides. The parallel sides of a trapeziums are denoted as the bases, and its non-parallel sides are called legs.

What are the different kinds of trapezium?

Types of Trapezium

  • Isosceles Trapezium.
  • Scalene Trapezium.
  • Right Trapezium.

What number of diagonals does a trapezium have?

A trapezoid whose legs are not of similar length doesn’t have diagonals. In the event that the legs are a similar length, the figure has two diagonals.

What are the types of angles that a trapezium have?

A trapezium has four angles. If you are utilizing the English or U.S. definition, a trapezium is a quadrilateral.

What are different adjacent angles in a trapezium?

In a trapezoid, the two angles that are on a similar leg (one on the top part, one on the base) are called adjacent angles. These adjacent angles are termed as supplementary, and that implies their amount summarize to 180°, as we all know.

What are the different properties of trapezium?

A trapezium has the accompanying properties:

  • Like different quadrilaterals, the amount of the multitude of four angles of the trapezium is equivalent to 360°. 
  • A trapezium has basically two different parallel sides and two different non-parallel sides. 
  • The diagonals of normal trapezium separate one another.

Basic Properties of a Trapezium

  • It is a 2 dimensional shape.
  • The bases of a trapezium are parallel to one another.
  • The length of both the diagonals is equivalent.
  • The diagonals of a trapezium generally divide one another in equal halves.
  • The corresponding interior angles summarize to 180°.
  • The amount of the multitude of interior angles in a trapezium is 360° each time.

What are the different properties of a trapezium angles?

Trapezium and Its Properties

  • Angle: The amount of angles in a trapezium quadrilateral is 360°.
  • Two angles on a similar side are adjacent, that is the amount of the angles of two adjacent sides is equivalent to 180°.
  • Its diagonals bisect each another.

Trapezoid Area Equation

As indicated by the trapezoid area equation, the area of a trapezoid is equivalent to a half of the product of the elevation and the addition of the two bases.

Thus, Area can be depicted as half of the product of the sum of parallel sides multiplied by the perpendicular distance between the parallel sides.

Therefore, using the formula, Area = ½ h (b1 + b2), where h is the height or elevation and b1, and b2 are the parallel sides of the trapezoid.

How would you find out the area of an irregular trapezoid?

An irregular or abstract trapezoid has non-parallel sides of inconsistent length. To observe its area, you have to find out the amount of the bases and multiply it by half of the elevation or height.The height or elevation is sometimes not mentioned in the question, which you can find out utilizing the Pythagorean Theorem.


Allow us to recap the couple of essential properties of a trapezium underneath.

A trapezium can be defined as a shape encompassed by four sides, the shape whose single side is parallel to the base.

Properties of Trapezium:-

  • A trapezium has precisely one set of parallel sides.
  • A line section joining midpoints of non-parallel sides is parallel to the parallel sides.
  • A line section joining midpoints of the parallel side is a half of the amount of the lengths of it’s parallel sides for example mid-segment=1/2(base 1+base 2).
  • Assuming that a trapezoid is having sides a, b, c and d diagonals x and y, the following condition holds true= x²+y²=c²+d²+2ab.

These are the few fundamentals regarding trapezium and area oftrapezium. To find more concepts and ideas regarding mathematics, do visit Cuemath available online.

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