The number of lateral faces of a pyramid depends on the shape of its base.
- A triangular pyramid has 3 lateral faces.
- A pentagonal pyramid has 5 lateral faces.
Given that there are 2 triangular pyramids and 1 pentagonal pyramid, the total number of lateral faces is:
2 × 3 + 1 × 5 = 6 + 5 = 11
Therefore, there are a total of 11 lateral faces.
There is a row of two triangular pyramids and one pentagonal pyramid in a display at a museum. How many lateral faces are there altogether?(1 point) $$
1 answer
1 answer