If the vertices are at (0, -2) (8, -2) and (9, 1) on the Cartesian plane plane then by using the distance formulae and trigonometry the area of the triangle works out as 12 square units.
The coordinates are the vertices of a triangle since they form three points.
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Because all the vertices are already joined together. The formula for the diagonals of a polygon is: 1/2*(n2-3n) where n is the number of sides A triangle has 3 sides and 1/2*(32-9) = 0
sphere
It could be a sphere
The perimeter of a triangle with vertices at (-3,3), (3,5), and (-1,0) is 16.3334.
It is a right angle triangle with an area of: 0.5*7*9 = 31.5 square units
If you mean vertices of: (-1, -1) (-1, 3) and (5, -1) then when plotted on the Cartesian plane it will form a right angle triangle with a base of 6 units and a height of 4 units. Area of triangle: 0.5*6*4 = 12 square units
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3 vertices, 3 edges and 1 face.
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1 face, 1 edges & 0 vertices
Faces: 1 Vertices: 3 Edges: 3
0 edges, 1 face and 0 vertices.
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A sphere has no edges or edges but its face is globular.
The area is calculated easily using the determinant of the matrix of coordinates, or Heron's formula and is 15 square units.