Please enable JavaScript.
Coggle requires JavaScript to display documents.
olume, surface area and nets of pyramids, cones and compound…
olume, surface area and nets of pyramids, cones and compound threedimensional shapes
Pyramids
A pyramid is a polyhedron with a polygonal base and triangular faces that meet at a common vertex. The height of a pyramid is the perpendicular distance from the base to the vertex.
The formula for the volume of a pyramid is V = (1/3)Bh, where B is the area of the base and h is the height of the pyramid.
The surface area of a pyramid is the sum of the areas of its base and its lateral faces. The formula for the surface area of a pyramid is S = B + (1/2)Pl, where B is the area of the base, P is the perimeter of the base, and l is the slant height of the pyramid.
-
Nets of a cone can be formed by cutting and unfolding the curved surface of a cone into a flat surface. The net of a cone consists of a circular sector and a triangle that forms the lateral surface.
Cones
A cone is a three-dimensional shape with a circular base and a curved surface that tapers to a point called the apex.
The formula for the volume of a cone is V = (1/3)πr^2h, where r is the radius of the base and h is the height of the cone.
The surface area of a cone is the sum of the area of its base and its lateral surface. The formula for the surface area of a cone is S = πr^2 + πrl, where r is the radius of the base, l is the slant height of the cone, and π is pi (approximately equal to 3.14).
-
-
-
-
-
-
-
-
-
-
-
-
-
