This document defines and describes basic geometric shapes found in the real world including points, lines, planes, angles, triangles, quadrilaterals, circles, spheres, cylinders, cones, cubes and how they relate to each other. It explains that a point has no size, a line extends forever, a plane is flat and extends forever, an angle is formed by two rays, perpendicular lines intersect at 90 degrees, parallel lines never intersect, and defines polygons by the number of sides like triangles having three sides and pentagons having five sides. It also provides specific definitions for shapes like squares, rectangles, trapezoids, parallelograms, right triangles, circles, spheres, cylinders and cones.

1. Geometry in the Real World By: Ashlan Wiley Block 5

2. Point A Point names a spot and has no size.

3. Line A Line is a straight path that has no thickness and extends forever.

4. Plane A Plane in a flat surface that extends forever and has no thickness.

5. Angle An Angle is a figure formed by 2 rays with a common endpoint.

6. Perpendicular lines Perpendicular lines are lines that intersect at 90 degree angles.

7. Parallel lines Lines that lie on the same plane that don’t intersect.

8. Triangle A Triangle is a 3 sided polygon.

9. Right Triangle A Right Triangle is a triangle that has one right angle in it.

10. Pentagon A Pentagon is a 5 sided polygon

11. Hexagon A Hexagon is a 6 sided polygon

12. Square A Square is a quadrilateral that has 4 congruent sides with 4 right angles

13. Rectangle A Rectangle is a quadrilateral with 4 right angles.

14. Trapezoid A Trapezoid is a quadrilateral with one pair of parallel sides.

15. Parallelogram A Parallelogram is a quadrilateral with 2 pairs of parallel sides.

16. Circle A Circle is round with a center point.

17. Cylinder A Cylinder is a 3-dimensional figure with 2 parallel congruent circular bases and a curved lateral surface that connects the bases.

18. Sphere A Sphere is like a circular object like a bouncy ball or like the world.

19. Quadrilateral A Quadrilateral is a four sided polygon.

20. Cone A Cone is a 3 dimensional figure with a circular base and a curved lateral surface that connects the base to a point called the vertex.

21. Cube A Cube is a six sided prism and the sides are squares.