What is a square? You What's a triangle? What is a triangle?

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A square is a special polygon with four equal sides and four right angles. Each angle measures exactly 90 degrees. It's both a rectangle, because all angles are right angles, and a rhombus, because all sides are equal length. A triangle is a polygon with exactly three straight sides and three angles. The most important property of triangles is that the sum of all three interior angles always equals 180 degrees, regardless of the triangle's shape or size. Triangles can be classified in two ways. By their sides: equilateral triangles have all sides equal, isosceles have two equal sides, and scalene have all different sides. By their angles: acute triangles have all angles less than 90 degrees, right triangles have exactly one 90-degree angle, and obtuse triangles have one angle greater than 90 degrees. Let's compare squares and triangles. A square has four equal sides and four right angles, while a triangle has three sides and three angles that sum to 180 degrees. Squares have a fixed shape with all angles being 90 degrees, but triangles can have various shapes depending on their side lengths and angles. Both are fundamental polygons used extensively in geometry and real-world applications. Both squares and triangles are everywhere in our daily lives. Squares appear in floor tiles, windows, computer screens, and chess boards because of their symmetry and efficient space usage. Triangles are essential in construction - from roof structures and bridge supports to road signs - because they provide excellent structural stability and strength. Understanding these basic shapes helps us appreciate the geometry that surrounds us every day.