Google+SketchUp

Project 1
Make sure you have the large tool set on display. Go to View then Toolbars the Large Tool Set. Now find the polygon icon (brown triangle). Drag it out to draw a polygon. You can determine the number of sides by typing in a number then s for sidess - 5s return will give you a pentagon. These are regular polygons so the sides lengths are the same as are the angles. Use the protractor tool to measure an internal angle. Click on one point, then on another thenswivel around to a third point to make an angle. The degrees of the angle is shown at the bottom right corner. Make a table: You may have to investigate the names of regular polygons. (Extension Task - Can you see any patterns in the table? Using the number of sides, can you find a way to predict what the sum of the internal angles will be? Test your eequation on a 25 sided polygon. Did you get 4140? If so then what would sum of a 15 sided regular polygon? Show your Maths teacher this to gain credit for doing the work.) Make several irregular polygons. Save your work on SketchUp as evidence to show your teacher. Use the file name Polygons. You could label these polygons on Google sketchUp. Turn each of the polygons into polyhedra. Use the measurement tool to make each 3D shape 1 m taller than the last. These polyhedra are known as prisms. Now figue out how to make a 3, 4 and 5 sided pyramid. Pyramids are a type of polyhedra. Can you make an irregular polyhedra? (Extension Task - How many regular polyhedra there are. What are there names? Want to make a icosahedron? Watch the youtube video Making an icosahedron in Google SketchUp []. Colour your finished product and send a copy to you Maths teacher for credit.) Save your work on SketchUp as evidence to show your teacher. Use the file name Polyhedra.
 * Name of Polygon ||= Number of sides || Internal Angle || Angle sum ||