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two if the triangle has a right angle
How many faces of cuboid
A cuboid has got six flat surfaces.
Diamonds come in all shapes and sizes, which determine the number of perpendicular lines (assuming you are referring to the edges as the lines) so there is no one number of lines or perpendicular lines on a diamond.
Well, isn't that a happy little question! A heptagon, with its seven sides, can have a maximum of seven perpendicular lines. Each side can have one perpendicular line drawn from it, creating a lovely pattern of right angles within the shape. Just remember, there are no mistakes, only happy little perpendicular lines waiting to be discovered!
No but it has perpendicular lines that meet at right angles.
A cuboid has 8 vertices, 12 edges and 6 faces
8 corners
Oh, dude, a heptagon has like a bazillion pairs of perpendicular lines... just kidding! It actually has 14 pairs of perpendicular lines. So, like, if you ever need to find perpendicular lines in a heptagon, you've got plenty to choose from.
6 everybody knows that
A cuboid does have 12 vertices.
A cuboid has 8 vertices (not vertaices).