what is a shape that have 8 sides
Yes, a shape can have three straight sides and one curved side. This type of shape is known as a triangle with one curved side, which is also called a curved triangle or a curved-sided triangle. The curved side can be a segment of a circle or any other curved shape, while the other three sides are straight lines.
There is no specific name for such a shape.
The shape that has 1 curved side and 3 straight sides is a crescent. A crescent is a curved, closed shape that resembles a thin, partially illuminated moon. It is formed by the intersection of two circles or by removing a smaller circle from a larger one, resulting in one curved side and three straight sides.
It is any two-dimensional shape that has 4 sides formed by straight lines. It can be a square, rectangle, rhombus, rhomboid, parallelogram, or trapezoid. Its four included angles will total 360° (for a concave shape, one will exceed 180°).
It could be a sector although that implies that (a) the curved side is part of a circle which it need not be and (b) that the two straight lines meet at the centre of the circle - again an assumption not justified by the requirements of the question.
There is no specific name for such a shape.
A two-dimensional shape with one curved side and four straight sides can be created, but there is not specific name for such a shape.
Two straight lines connected by one curve is the basic horse-shoe shape.
A shape with at least one side that is not straight, a shape where a pair of straight lines cross one another (like an angular figure of 8).
Yes, a shape can have three straight sides and one curved side. This type of shape is known as a triangle with one curved side, which is also called a curved triangle or a curved-sided triangle. The curved side can be a segment of a circle or any other curved shape, while the other three sides are straight lines.
There is no specific name for such a shape.
A rhombus is one of them
a right triangle
Any shape with four straight sides is a quadrilateral. A trapezoid has one pair of parallel sides, and a parallelogram has two pairs of parallel sides. So any shape with four straight sides and no parallel sides is a quadrilateral that is not a parallelogram or trapezoid.
It is one plane shape consisting of four straight sides (and four vertices).
It could be a cylinder
The shape that has 1 curved side and 3 straight sides is a crescent. A crescent is a curved, closed shape that resembles a thin, partially illuminated moon. It is formed by the intersection of two circles or by removing a smaller circle from a larger one, resulting in one curved side and three straight sides.