The shape that has one curved side and two straight sides is a semicircle. A semicircle is a two-dimensional shape that is half of a circle, with one curved side and two straight sides that connect at the endpoints of the curved side. The curved side of a semicircle is a semicircular arc, while the two straight sides are diameters that intersect at the center of the circle from which the semicircle is derived.
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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.
Oh honey, that's a semicircle. It's like a circle that went on a diet and lost half of itself. So you've got one nice, curvy side and two straight edges keeping it in line.
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.
no because a quadrilateral has straight sides if it were curved it wouldn't be a polygon because polygons must have straight sides
There is no specific name for such a shape.
A shape with three linear sides and one curved side can be drawn, but such a shape has no specific name.
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.