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Parallel sides are lines that remain the same distance apart.
Yes because to be similar the shapes need to have the same ratio of sides and similar angles. To be congruent the shapes have to be the same shape and size, so 2 congruent shapes will always be similar.
trapezium
Shapes with straight sides are called polygons
There are many shapes with parallel sides: e.g. most regular quadrilaterals like Squares, Rectangles and Parallelograms have parallel sides, and so do quite a few regular polygon. But what is a parallel side (or line)? These are two line which are exactly the same length apart and must always be straight and consequently will never meet, no matter how far they extend. For example, train tracks are often parallel (until they bend for the train to turn left or right). They would have to be parallel, because the distance between the train's wheels is always going to be the same. Many shapes have "sets" of parallel sides, like a rectangle has two sets and a hexagon has six. Sets of Parallel lines (or sides) are distinguished by an arrow pointing in one direction of both lines. Note: Irregular polygons with 5 or more sides are also candidates.
Quadrilaterals are shapes that always have four (4) sides
Any regular shapes have equal sides, including squares and equilateral triangles. Irregular shapes can also have equal sides, but not equal angles.
Parallel sides are lines that remain the same distance apart.
trapezium
Yes because to be similar the shapes need to have the same ratio of sides and similar angles. To be congruent the shapes have to be the same shape and size, so 2 congruent shapes will always be similar.
Apart from an equilateral triangle and a rhombus or square, there is no special name.
It means both sides are precisely the same distance apart .
The answer depends on the dimensions of the shape. Plane shapes - flat shapes in 2-dimensional space - will have the same number of vertices as sides. However, that is not the case with solid shapes.
They are the boundaries of the shapes.
Shapes that have four sides are known as quadrilaterals.
Shapes with straight sides are called polygons
They both have 4 sides (excluding the inside and outside).The opposite sides of both shapes are parallel.The sum of all internal angles of both shapes is always 360 degrees.The sum of all external angles of both shapes is always 1080 degrees.they both have two sets of parallel lines