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There are some parallelograms which are not rectangles true or false?
yes. rectangles are just the special cases of parallelograms where the angles are all 900
Do some parallelograms have equal diagonals true or false?
True when they are in the form of rectangles.
Which quadrilaterals has the same length diagonals?
parallelogram * * * * * Not true. Rectangles and squares do, but other parallelograms do not.
Are all rectangles are parallelograms but not all parallelograms are rectanges true or false?
That is true. A parallelogram is a quadrilateral with both pairs of opposite sides parallel to one another. Special types of parallelograms include a rhombus (all four sides also congruent to each other), a rectangle (all four interior angles measure 90o), and a square (all four sides congruent and all four interior angles are right). A rectangle is a special case of a parallelogram, therefore all rectangles are by definition parallelograms but not all parallelograms are rectangles.
True or false there are 100 squares on a regulation checker board?
true for international
