True: Alternate interior angles form letter z., If two straight lines are parallel, every perpendicular to one is perpendicular to the other., A median connects the vertex of a triangle to the midpoint of the opposite side., Isosceles triangles have 2 equal sides., In a parallelogram, opposite sides are parallel., A quadrilateral has 4 sides., The side facing the right angle is called hypotenuse., False: In a parallelogram base angles are equal., Any point on the bisector is equidistant from the extremities., Complementary angles form 180º ., A scalene triangle has 3 equal sides., If two pairs of opposite sides are equal in ABCD we conclude that it is an octagon., In a circle diagonals bisect each other., A segment is written in between parentheses. ,

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