Question

Classify the solid.

Answer 1

tetrahedron
B.
dodecahedron
C.
octahedron
D.
icosahedron

Answer 2

how many faces does the figure have?

Answer 3

or the triangles

Answer 4

14 i think

Answer 5

try again
http://upload.wikimedia.org/wikipedia/commons/4/44/Platonic_Solids_Stereo_5_-_Icosahedron.gif

Answer 6

thats the front view ^

Answer 7

20

Answer 8

i would never know without rotating , unless they says regular triangle , there is such a formula but it also confuse me as well

Answer 9

im not sure , see what about size of angles xD i dont know which side they are showing :|

Answer 10

its d thanks for all the help

Answer 11

https://www.google.com/search?q=icosahedron&espv=2&biw=1366&bih=643&source=lnms&tbm=isch&sa=X&ei=WYWpVNjnG8iwuAT27YG4Dg&ved=0CAYQ_AUoAQ

Answer 12

its something like this