Class 9 Exam  >  Class 9 Notes  >  Lab Manuals for Class 9  >  Viva Voce: Verify that the Opposite Angles of a Cyclic Quadrilateral

Viva Voce: Verify that the Opposite Angles of a Cyclic Quadrilateral | Lab Manuals for Class 9 PDF Download

Q.1. Which property has to be added in a trapezium for making it a cyclic quadrilateral?

Non-parallel sides of a trapezium should be equal.


Q.2. What is the name of quadrilateral, if each pair of opposite angles is supplementary?

Cyclic quadrilateral


Q.3. Is the sum of adjacent angles of a cyclic quadrilateral 180°?

No, only the sum of opposite angles of a cyclic quadrilateral is 180°.


Q.4. What is the type of quadrilateral formed by the internal angle bisectors of cyclic quadrilateral?

Cyclic quadrilateral


Q.5. If one of the angles of a cyclic quadrilateral is 40°, then what will be the value of its opposite angle?

140°


Q.6. What do you understand by the term a cyclic quadrilateral?

A quadrilateral having all the vertices on the boundary of the circle is called a cyclic quadrilateral.


Q.7. If a cyclic quadrilateral is a parallelogram, then what is the type of parallelogram?

Rectangle


Q.8. What is the sum of each pair of opposite angles of a cyclic quadrilateral?

180°

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