Question 5 • CA-Common Core Geometry DVHS Sem. 1
Point symmetry means a figure matches itself after a 180° rotation, so every figure with point symmetry has rotational symmetry; A is true. A parallelogram’s diagonals bisect each other, making their intersection a center of 180° rotational symmetry, so D is true. A triangle cannot match itself after a 180° rotation, so E is true. B is false because a figure can have rotational symmetry at another angle, such as an equilateral triangle’s 120° rotation, without having point symmetry; C is false because point symmetry does not require four lines of reflectional symmetry.
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