An isosceles triangle.
A nine sided nonagon is only a regular shape if it has 9 equal sides
A 6 sided hexagon is only a regular shape if it has 6 equal sides otherwise it is an irregular shape.
A rectangle. buuut if its only 1 pair, then its probably a rhombus
A four-sided shape with only 2 sides the same length is called a rhombus.
There is no four-sided shape (quadrilateral) with four equal sides where no angles are the same. The diagonally-opposing angles must be the same, and opposing sides must be parallel. The only quadrilateral that fits that description is a parallelogram.
It depends. The word paralellogram covers the whole family of both squares and rectangles.
A four-sided shape in which only two sides are parallel is called a trapezoid. All two-dimensional, four-sided shapes are known as quadrilaterals.
Well here's some: A four sided shape. A shape tht has sides that are all equal. Not a rectangle. A shape that has no curved sides. A two dementional shape. Not a polyhedron Can only have one form can't be a different size
A trapezoid is a four-sided figure (or "quadrilateral") with only one pair of parallel sides.
A Trapezium
A triangle only has 3 sides, but a 10 sided shape is called a decagon
Not always only if its a regular heptagon.