What is the shape of the volcanic cone that forms at subduction boundaries?

At subduction boundaries, the volcanic cone that forms is typically stratovolcanic in shape, characterized by its steep, conical profile. These volcanoes are built up by alternating layers of lava flows, ash, and volcanic rocks, resulting in a composite structure. The high viscosity of the magma associated with subduction zones contributes to the steep slopes and explosive eruptions commonly observed in stratovolcanoes. Examples include Mount St. Helens and Mount Fuji.