Consider this regular pentagonal pyramid and its net.
How many identical triangular faces does it have?
$\editable{}$ triangular faces.
Find the area of one triangular face.
Find the lateral area of the pyramid.
Consider this regular square pyramid.
Consider this regular hexagonal pyramid.
Consider this regular hexagonal pyramid.
The slant height $k$k is three times longer than the side length of $5$5 units.