Question

Pleasee Help

Answer 1

https://www.google.com/#gs_rn=17&gs_ri=psy-ab&tok=D09SnwigWIkosp57jZ7_3w&suggest=p&cp=6&gs_id=aq&xhr=t&q=tetrahedron&es_nrs=true&pf=p&sclient=psy-ab&oq=tetrah&gs_l=&pbx=1&bav=on.2,or.r_qf.&bvm=bv.47883778,d.dmg&fp=4223ee9a11e27c42&biw=1372&bih=930

Answer 2

d. its another name for a regular triangluar pyramid

Answer 3

To stop confusion between the two sorts of pyramids, mathematicians use the word tetrahedron to describe a triangular pyramid. 'Tetra' means four, and the tetrahedron has four sides.

Answer 4

Thank you I got it now can you help with one more ?