Dimensions Get ready to discover and uncover the properties of shapes Take a moment to compare the shapes seen here 4
Before we begin let’s get warmed up and learn about dimensions Points allow you to see the exact location of where they should be A point has no measure or dimension just simply its position length Lines are one-dimensional and have just one measure length Plane shapes are so clever They bring length and width together Because of this fact 2-dimensional shapes are always flat width Solid shapes are even better They join three measures together Height length and width are the measures that create 3-dimensional shapes with pleasure length width 5 length Height
Polygons Let’s take a moment to see what polygons mean to you and me Polygons are closed 2-dimensional shapes with straight sides Check Closed It Out Open 6
Is it a polygon or not Explain why a shape is not a polygon Yes Yes sides are not straight No the shape is not closed and the Yes No the sides are not straight Yes Yes No the shape is not closed Yes are not polygons No 3-dimensional shapes Answers 7
