The following applet can be used to explore the net of a Cone and it's surface area formula.Use slider to change the radius of the base and slider h to change height of the cone. Finally use the Net slider or press the play button to show how the cone unraps into its net.
Registering for a Scoilnet Account – your first step to contributing and sharing
What you need...
To register for a Scoilnet Account you will need to have a Teaching Council number and a roll number for your school in Ireland.
If you already have a Scoilnet Account then you can sign in here.
A Scoilnet account will allow you to upload your resources or weblinks to Scoilnet as well as enabling you to share and add resources to a favourites listing. Users who have a Scoilnet Account will also be able to fully access
Scoilnet Maps and
Census@School from home.