To give the monument extra support and to make it errect
like the egyptian pyramid
we have triangular support on some structures because triangles if given pressure doesn't change its shape and it also supports these structures.
A pyramid is typically thought of as a triangular shape. The pyramids in Egypt are considered incredibly awesome national monuments.
shipbuilding, fishing, triangular trade, and most importantly whaling.
Each of them has four triangular faces.
Buddah
The most common marble used for interred is granite. Headstones can be custom made from granite also, as for companion monuments, individual monuments and cremation monuments.
Small Triangular shaped pyramids are used in super markets and malls to give them strong support!
square pyramid
who benefit most from triangular trade
phillips phillips: home
The slaves being carried from Africa to the Americas suffered the most from the triangular trade.
A triangular prisim