Area = B + ( (PH)/2 )
Where B is the base area, P is the base perimeter and H is the piramid height.
The formula to find the area of an octagonal pyramid is area of base plus area of sides.
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It has to do with the surface area formula: To find the total surface area of a pyramid, use this equation: Surface Area = B + 1/2 * P * s B = base area P = perimeter of the base s = slant height To find the volume of a Pyramid, substitute into this equation: V=1/3Bh B=base area h=height of pyramid
To find the surface area of a pyramid using a net, first, draw the net by unfolding the pyramid into its flat shapes, which include the base and the triangular faces. Calculate the area of the base and the area of each triangular face separately. Finally, sum the areas of all the shapes in the net to obtain the total surface area of the pyramid.
The surface area of a pyramid is the area of all the faces of the pyramid, for a pyramid with apex in the centre and a regular polygon as its base, (the bottom of a pyramid is the base, it is regular if all sides are the same length) the surface area is: B + 1/2(P * H) where B is the area of the base, P is the perimeter (area around) the base and H is the height of the pyramid.
You can find the exact surface area for all of those shapes.
The surface area of a pyramid is the area of all the faces of the pyramid, for a pyramid with apex in the centre and a regular polygon as its base, (the bottom of a pyramid is the base, it is regular if all sides are the same length) the surface area is: B + 1/2(P * H) where B is the area of the base, P is the perimeter (area around) the base and H is the height of the pyramid.
Surface area of any pyramid is 1/2Pl + B; where P=perimeter of the base, l=slant height and B= Area of the base.
Find the surface area of each of the four triangular faces (they need not be the same) and sum the individual areas.
If its a triangular based pyramid (tetrahedron) then it will have 4 equilateral triangle faces and so find the area of one face and multiply it by 4 to give the total surface area.
Using the dimensions you're given and those that you can calculate . . .-- Calculate and write down the area of each face of the pyramid.-- Then add up all of the individual areas.-- The sum is the surface area of the pyramid.
Find the surface area of each individual face and then add them together to give the total surface area of the pyramid.