What is opposite angles of quadrilateral?

What is opposite angles of quadrilateral?

Two angles of a quadrilateral are said to be opposite angles of the quadrilateral, if they are not adjacent. (∠A,∠C),(∠B,∠D) are the pair of opposite angles of quadrilateral. Hence (∠A,∠C),(∠B,∠D) are the pair of opposite angles of quadrilateral.

What is opposite sides of quadrilateral?

Two sides of a quadrilateral are called its opposite sides if they do not have a common endpoint. In the given figure, (AB, DC) and (AD, BC) are two pairs of opposite sides of quadrilateral ABCD. Note: The given figure does have 4 sides AB,CD,BC,DA but the figure is not closed by lines.

What is opposite angle?

Opposite angles are non-adjacent angles formed by two intersecting lines. Opposite angles are congruent (equal in measure).

What are adjacent and opposite sides of a quadrilateral?

Hint: In a quadrilateral, two sides are adjacent if they have an angle in common while if two sides don’t have any common angle then they are opposite sides. Similarly two angles are adjacent if they have a side in common while if two angles don’t have any common side then they are opposite angles.

Are opposite angles of a quadrilateral 180?

The sum of the opposite angles of a quadrilateral in a circle is 180°, as long as the quadrilateral does not cross itself.

What is the diagonal of a quadrilateral?

A line segment drawn from one vertex of a quadrilateral to the opposite vertex is called a diagonal of the quadrilateral. For example, AC is a diagonal of quadrilateral ABCD, and so is BD.

What is the formula of diagonal of quadrilateral?

If we suppose the length of a square is L, then the length of the diagonal = L √2. Area of a square = L2. A quadrilateral whose four sides are all congruent in length is a rhombus. Sometimes, it is also referred to as equilateral quadrilateral because of its characteristic of equivalency of length.

What are the elements of a quadrilateral?

A quadrilateral has 8 elements – 4 sides and 4 angles. In addition to these elements a quadrilateral has 2 diagonals which play an important role in determining the size and shape of a quadrilateral. Thus a quadrilateral has 10 elements (4 sides, 4 angles and 2 diagonals) or measurements.