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Refraction is when light bends through an object. White light is made up of all the colors of the spectrum. Different colors have different wavelengths, therefore they bend at different angles. So when white light passes through a prism the different colors bend at different angles, so they separate to produce the rainbow of light that we see.
There is no specific name for a polygon in which all the angles are different or where the sides are all different.
A scalene triangle has different sized sides and angles.
No there are different angle such as right angles, obtuse angles, and acute angles.
Equilateral = all 3 sides the same length, and all 3 angles the same Scalene = all 3 sides different, and all angles different Isosceles = 2 sides the same, 1 different, 2 angles the same, 1 different All internal angles in a triangle add up to 180 degrees. Hope this helps x