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Use Counterexamples To Disprove Conjectures

True or False: Conjecture - "If two triangles are similar, their corresponding angles are congruent."

True or False: Conjecture - "If two angles are supplementary, they are also adjacent."

True or False: Conjecture - "If the diagonals of a quadrilateral bisect each other, the quadrilateral is a rectangle."

True or False: Conjecture - "All squares are rectangles, but not all rectangles are squares."

True or False: Conjecture - "All rectangles are parallelograms."

True or False: Conjecture - "If a polygon has all angles equal, then it is a regular polygon."

True or False: Conjecture - "Every equilateral triangle is also an isosceles triangle."

True or False: Conjecture - "If two triangles have the same area, they are congruent."

True or False: Conjecture - "All squares are rhombuses."

True or False: Conjecture - "If a polygon is a hexagon, then it is also a regular hexagon."