How many triangular bases are there among 3 square pyramids and 2 pentagonal pyramids that Jayla sees on her trip to Egypt?(1 point)
its 0
The number of triangular bases among the 3 square pyramids is 3 times the number of triangular faces of a square pyramid, which is 3*4 = <<3*4=12>>12 triangular bases.
The number of triangular bases among the 2 pentagonal pyramids is 2 times the number of triangular faces of a pentagonal pyramid, which is 2*5 = <<2*5=10>>10 triangular bases.
Among the 3 square pyramids and 2 pentagonal pyramids, there are 12+10 = <<12+10=22>>22 triangular bases. Answer: \boxed{22}.