How can we make a pyramid out of paper/cardboard for a school project?

[tigermoth]

I think I know how to make a template for a cut out paper pyramid, but I'm not 100% sure.

Any help much appreciated. My 7 year old has to hand in his school pyramid project tomorrow. I have promised him we will make a model as part of it.

Hopeful smile at clever mumsnetters.

here but make a bit of an overlap on the triangles to have something to attach to them

Thanks so much southeastastra

Very kind.