Thier is a row of two triangular pyramid and one pentagonal pyramid in a display at a museum.how many lateral faces are thier together
To calculate the number of lateral faces, we need to know the number of faces each type of pyramid has.
A triangular pyramid has 4 faces - one base and three lateral faces.
A pentagonal pyramid has 6 faces - one base and five lateral faces.
Since there are two triangular pyramids and one pentagonal pyramid, we can calculate the total number of lateral faces by multiplying the number of pyramids by the number of lateral faces for each type of pyramid.
For the triangular pyramids: 2 pyramids * 3 lateral faces = 6 lateral faces
For the pentagonal pyramid: 1 pyramid * 5 lateral faces = 5 lateral faces
Adding the lateral faces together, we get: 6 lateral faces + 5 lateral faces = 11 lateral faces.
Therefore, there are 11 lateral faces in total.