A ____ is a 2D shape having three or more straight sides. A triangle is the most ____ polygon. It has 3 sides and 3 angles. ____ Triangles have 3 sides that are all different lengths. Isosceles Triangles have 2 sides which are the ____ length. Triangles with 3 equal sides are called ____ Acute Angled Triangles are triangles that ____ have acute angles. A triangle with 1 ____ angle is called a Right Angled Triangle. An ____ has 1 obtuse angle.

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