Which theorems are important to deal with class 9 maths chapter 8 question answer?
Answer (1)
Here is the list of theorems that are important for this chapter.
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A diagonal of a parallelogram divides it into two congruent triangles.
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Opposite sides of a parallelogram are equal.
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Opposite angles of a parallelogram are equal.
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Diagonals of a parallelogram bisect each other.
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A quadrilateral is a parallelogram if opposite sides/angles are equal or if its diagonals bisect each other.
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