Answer:
there doesnt seem to be much information, but from what it looks like it looks like it is 20?
Answer:dwqdwdqw
Step-by-step explanation:
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Answer:
Step-by-step explanation:
The regular pentagonal pyramid has a base that is a regular pentagon and lateral faces that are equilateral triangles.
Answer:
840cm^3
Step-by-step explanation:
[12*15-(12-8)*(15-5)]*6
=[180-40]*6
=140*6
=840cm^3