NCERT Solutions Class 9 Mathematics Chapter 8 Quadrilaterals

Exercise 8.1 Q.1) The angles of a quadrilateral are in the ratio 3 ∶ 5 ∶ 9 ∶ 13. Find all the angles of the quadrilateral. Sol.1) Suppose the measures of four angles are 3𝑥, 5𝑥, 9𝑥 and 13𝑥. ∴ 3𝑥 + 5𝑥 + 9𝑥 + 13𝑥 = 360° [Angle sum property of a quadrilateral] ⇒ 30𝑥 = 360…

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CBSE Class 9 Maths Quadrilaterals MCQs

Question. The bisectors of angles of a parallelogram forms a (A) Trapezium (B) Rectangle (C) Rhombus (D) Kite Answer : B Question. The diagonals AC and BD of a parallelogram ABCD intersect each other at the point O. If ∠DAC = 32° and ∠AOB = 70°, then ∠DBC is equal…

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CBSE Class 9 Mathematics Quadrilaterals Notes

   Chapter 8 Quadrilaterals Chapter Notes Top Definitions 1. A quadrilateral is a closed figure obtained by joining four points (with no three points collinear) in an order. 2. A diagonal is a line segment obtained on joining the opposite vertices. 3. Two…

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CBSE Class 9 Mathematics Quadrilaterals VBQs

QUADRILATERALS   Question.                                                                   …

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