NCERT Mathematics Class 9 Exemplar Ch 8 Quadrilaterals Part 4

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Q.11. Can all the angles of a quadrilateral be acute angles? Give reason for your answer.

Answer: No; Angle sum of a quadrilateral is

Q.12. Can all the angles of a quadrilateral be right angles? Give reason for your answer.

Answer: Yes, Angle sum of a quadrilateral is.

Q.13. Diagonals of a quadrilateral ABCD bisect each other. If, determine.

Answer:

Q.14. Opposite angles of a quadrilateral ABCD are equal. If, determine CD.

Answer:

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