## What is a quadrilateral with opposite sides parallel and equal in length?

In Euclidean geometry, a parallelogram is a simple (non-self-intersecting) quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure.

Which quadrilaterals have parallel opposite sides?

• A parallelogram is a quadrilateral in which both pairs of opposite sides are parallel .
• A rhombus is a parallelogram with four congruent sides.
• A square can be defined as a rhombus which is also a rectangle – in other words, a parallelogram with four congruent sides and four right angles.

Which quadrilaterals have two pairs of parallel sides that are the same length?

A parallelogram is a quadrilateral with 2 pairs of parallel opposite and equal sides. Similarly, the opposite angles in a parallelogram are equal in measure.

### What is a quadrilateral with two parallel sides?

A parallelogram is a quadrilateral with 2 pairs of parallel sides. In these figures, sides of the same color are parallel to each other. A shape with four sides of equal length.

What is the most special type of parallelogram?

Rectangle. A rectangle is a special type of parallelogram which has all the properties of parallelogram along with some different properties. Each angle of a rectangle must be a right angle, i.e. of 90°.

What quadrilateral is formed if these 2 triangles are put together?

Answer: a. If 2 type of equilateral triangle are fitted together then it may form rhombus.

#### What quadrilateral has one exactly one pair of parallel sides?

A trapezoid is a quadrilateral with exactly one pair of parallel sides. (There may be some confusion about this word depending on which country you’re in. In India and Britain, they say trapezium ; in America, trapezium usually means a quadrilateral with no parallel sides.)

What types of quadrilaterals have two pairs of parallel sides?

A parallelogram has two pairs of equal sides.

• It has two pairs of equal angles.
• The opposite sides are parallel.
• The diagonals bisect each other.
• Which quadrilateral always has 4 right angles?

In Euclidean plane geometry, a rectangle is a quadrilateral with four right angles. It can also be defined as an equiangular quadrilateral, since equiangular means that all of its angles are equal (360°/4 = 90°).

## What is the formula for a quadrilateral?

The formula for an irregular quadrilateral — which is a polygon that has four sides that are of unequal length — is the same as that of a trapezoid. The formula is a + b + c+ d = perimeter. For example, suppose that a quadrilateral has sides with lengths of 1, 5, 3 and 4 inches.