Presentation on theme: "Two - Dimensional Shapes"— Presentation transcript:
1 Two - Dimensional Shapes UnderstandingTwo - Dimensional Shapes2- D Shapes
2 AnglesAn angle is the figure formed by two lines with the same endpoint.
3 Right AngleA right angle is an angle with a square corner.
4 Parallel LinesParallel lines are lines that are the same distance apart. Parallel lines do not meet or intersect.
5 Plane FiguresPlane figures are figures that are2-dimensional.
6 CircleA circle is a curved plane figure in which every point is the same distance from the point at the center.
7 PolygonXA polygon is a 2-D figure that is closed and whose edges are all straight lines.X
8 TriangleA triangle is a shape with three sides and three angles.
9 Equilateral TriangleAn equilateral triangle is a triangle with three equal sides and three equal angles.
10 Isosceles TriangleAn isosceles triangle is a triangle with two equal sides.
11 Right TriangleA triangle with a right angle (a square corner).
12 QuadrilateralA quadrilateral is a shape that has 4 sides and 4 angles.
13 KiteA kite is a quadrilateral that looks like a kite -- with no parallel sides, but with two pairs of equal sides that are adjacent to each other.
14 ParallelogramA parallelogram is a figure that has four sides and each pair of opposite sides is equal and parallel.
15 RhombusA rhombus is a parallelogram with four sides of the same length. A square is a special type of rhombus that has all square corners.
16 SquareA square is a quadrilateral that has four equal sides and four right angles.
17 RectangleA rectangle is a quadrilateral that has four right angles and each pair of opposite sides is parallel and the same length.
18 TrapezoidA trapezoid is a four-sided shape with only two opposite sides that are parallel.
19 5PentagonRegularIrregularA pentagon is a figure with five sides. If all angles and sides are equal, then it is regular, otherwise it is irregular.
20 6HexagonIrregularRegularA hexagon is a figure with six sides. If all angles and sides are equal, then it is regular, otherwise it is irregular.
21 Octagon8RegularIrregularAn octagon is a figure with eight sides. If all angles and sides are equal, then it is regular, otherwise it is irregular.
22 Label each shape.Which of these shapes are plane figures? polygons? triangles? quadrilaterals?How many pairs of parallel lines can you find?How many right angles can you find?hexagonparallelogramcircletrapezoidrhombusisosceles trianglepentagonoctagonequilateral triangle