it's simple a slope
Generally, when a volcano produces a gentle eruption the lava has a very low viscosity (it is very runny). This allows the lava to spread out quickly after it has exited the volcano but before it cools and hardens. This means that the lava will be able to spread further from the eruption site and thus gentle slopes are created. In a strong eruption, lava with a higher-viscosity is thrown out along with some rock fragments, this lava cannot flow as far away before it cools and so the volcano has steep slopes. Hope that helps!
it is called a seven sided shape in Canada
11-sided QuadrilateralAn 11-sided quadrilateral is called a hendecagon.
An eight sided shape is called an octagon.
A five sided polygon is called a pentagon because pentagon means five sided polygon I think.
It is called a megagon. A ∞ sided shape is called an apeirogon.
A 7 sided pyramid would be called a heptahedral or heptahedron.
Tall volcanoes are called stratovolcanoes (composite volcanoes). They are characterized by their steep-sided cones formed by alternating layers of lava flows, volcanic ash, and other volcanic materials. Examples include Mount St. Helens in the United States and Mount Fuji in Japan.
A seven sided figure is called a heptagon.
An eight sided figure is called an octagon.
A 3-sided figure is called a triangle.
A four sided figure is called a quadrilateral.