A large volcanoes with gently sloping sides is call what?

A large volcano with gently sloping sides is called a shield volcano. These volcanoes are primarily built up by the flow of low-viscosity basaltic lava, which can travel long distances, resulting in their broad, shield-like shape. Shield volcanoes typically produce less explosive eruptions compared to stratovolcanoes. Examples include Mauna Loa and Kilauea in Hawaii.