Parallelogram: A quadrilateral with 2 pairs of parallel sides.

How do you know if sides are parallel?

If two lines are cut by a transversal so the alternate interior angles are congruent, then the lines are parallel. If two lines are cut by a transversal so the alternate exterior angles are congruent, then the lines are parallel.

What is a parallel shape called?

Parallelograms are shapes that have four sides with two pairs of sides that are parallel. The four shapes that meet the requirements of a parallelogram are square, rectangle, rhombus, and rhomboid.

Does a square have parallel sides?

The sides of a square are all equal (the same) length, making it a regular quadrilateral. All the angles in a square are right angles (90º). The opposite (facing) sides are parallel. A square is a type of rectangle.

What are pairs of parallel sides?

A parallelogram is a quadrilateral in which both pairs of opposite sides are parallel .

Does a rectangle have parallel sides?

What is a rectangle? A rectangle is a quadrilateral with 4 right angles. A shape with four sides of equal length. The shape has two sets of parallel sides and has four right angles.

Which lines are parallel lines?

In geometry, parallel lines can be defined as two lines in the same plane that are at equal distance from each other and never meet.

How do you find parallel lines?

We can determine from their equations whether two lines are parallel by comparing their slopes. If the slopes are the same and the y-intercepts are different, the lines are parallel. If the slopes are different, the lines are not parallel. Unlike parallel lines, perpendicular lines do intersect.

Which figure shows parallel lines?

Two lines in a plane are said to be parallel if they do not intersect, when extended infinitely in both the direction. Also, the distance between the two lines is the same throughout. The symbol for denoting parallel lines is ∥.

Does a triangle have parallel sides?

A triangle is a geometric shape that always has three sides and three angles. Triangles have zero pairs of parallel lines. They usually have zero pairs of perpendicular lines. Only one type of triangle, the right triangle, does have two perpendicular lines.

Does a hexagon have parallel sides?

The hexagon has three sets of parallel lines.

Does a rhombus have parallel sides?

A rhombus is a special case of a parallelogram. In a rhombus, opposite sides are parallel and the opposite angles are equal. Moreover, all the sides of a rhombus are equal in length, and the diagonals bisect each other at right angles.

Does a trapezoid have parallel sides?

A trapezoid has one pair of parallel sides and a parallelogram has two pairs of parallel sides. So a parallelogram is also a trapezoid.

How many parallel sides does a rhombus have?

Every rhombus has two diagonals connecting pairs of opposite vertices, and two pairs of parallel sides. Using congruent triangles, one can prove that the rhombus is symmetric across each of these diagonals. It follows that any rhombus has the following properties: Opposite angles of a rhombus have equal measure.

What shapes have no parallel sides?

Explanation: The American term for such a quadrilateral is a trapezium, and the British term is a trapezoid. It is a quadrilateral that has no parallel sides.

Which shape has only one pair of parallel sides?

The exclusive definition of a trapezoid states that a trapezoid has exactly one pair of opposite sides parallel.