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You are a polyhedron all faces are the same all faces are equilateral triangles i have 8 faces?
Octohedron, or rhomboid.
How many sides does a rhomboid have?
13 I think
How do you find an area of a RHOMBOID?
Find the area of the square and two triangles that compose the rhomboid.
What 3d shape that has more than one corner and has 8 letters?
A rhomboid, possibly. The names of 3-d shapes with plane faces end in the suffix -hedron. If the name is to have 8 letters, that leaves only 2!
Can all parallelograms be called rectangles?
No, but all are roughly square or rectangular. The classification "parallelogram" means that there are four sides and opposite sides are parallel. Only for SQUARES and RECTANGLES are there 4 right angles (90 degrees) such that adjacent sides are perpendicular.The other parallelograms do not have any right angles: the RHOMBUS and the RHOMBOID. The rhombus (diamond shape, tilted square) has four sides of equal length, while the rhomboid (stretched diamond) has opposite sides of equal length and parallel, but the two sets of opposite sides have different lengths, e.g. as in the faces of rhomboid parallelpipeds.
