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How do you find the area of an icosahedron?
You would need to divide it into triangles, find the area of each triangle and sum these areas together.
How do you find area of an irregular polygon?
For example, you can divide the polygon into triangles, and calculate the area of each triangle.
How do you find the surface area or a triangular prism?
You have to find the areas of each individual triangle's area and add them all up together.
How do you find the area and perimiter of a triangle?
To find the area of a triangle find the base and the height of the triangle. Then multiply the base by the height, then divide by 2. To find the perimiter of a triangle add together the outside edge of the triangle. To find the area of a triangle find the base and the height of the triangle. Then multiply the base by the height, then divide by 2. To find the perimiter of a triangle add together the outside edge of the triangle.
How do you find the surface area of a triangle pyramid?
Find the surface area of each of the four triangular faces (they need not be the same) and sum the individual areas.
