The 100th pentagonal number is 14950.
There is no equation - the answer is explicit in the name.A pentagonal prism has pentagonal bases. A pentagon has 5 sides. It could not be simpler!
Five.Five.Five.Five.
square
2:3
The 100th pentagonal number is 14950.
first triple digit pentagonal pyramidal number is 126
There is no equation - the answer is explicit in the name.A pentagonal prism has pentagonal bases. A pentagon has 5 sides. It could not be simpler!
5
square
Five.Five.Five.Five.
A pentagonal pyramid has exactly 6 faces.and a pentagonal prisim has 7
126.
pentagonal prism
square
2:3
A pentagonal what? A pentagonal pyramid or pentagonal prism have different numbers of vertices.