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In the given figure, ABCD and BDCE are p...

In the given figure, ABCD and BDCE are parallelograms with common base DC. If BC `bot` BD, then `angle`BEC =

A

60°

B

30°

C

150°

D

120°

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NCERT EXEMPLAR-UNDERSTANDING QUADRILATERALS AND PRACTICAL GEOMETRY-EXERCISE
  1. The sum of adjacent angles of a parallelogram is

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  2. The angle between the two altitudes of a parallelogram through the sam...

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  3. In the given figure, ABCD and BDCE are parallelograms with common base...

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  4. Length of one of the diagonals of a rectangle whose sides are 10 cm an...

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  5. If the adjacent angles of a parallelogram are equal, then the parallel...

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  6. Which of the following can be four interior angles of a quadrilateral?

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  7. The sum of angles of a concave quadrilateral is

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  8. Which of the following can never be the measure of exterior angle of a...

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  9. In the figure, BEST is a rhombus, Then the value of y – x is

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  10. The closed curve which is also a polygon is

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  11. Which of the following is not true for an exterior angle of a regular ...

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  12. PQRS is a square. PR and SQ intersect at O. Then anglePOQ is a

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  13. Two adjacent angles of a parallelogram are in the ratio 1:5. find all ...

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  14. A parallelogram PQRS is constructed with sides QR = 6 cm, PQ = 4 cm an...

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  15. The angles P, Q, R and S of a quadrilateral are in the ratio 1:3:7:9. ...

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  16. PQRS is a trapezium in which PQ||SR and angleP=130°, angleQ=110°. Then...

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  17. The number of sides of a regular polygon whose each interior angle is ...

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  18. If diagonal of a quadrilateral bisects each other at right angles then...

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  19. To construct a unique parallelogram, the minimum number of measurement...

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  20. To construct a unique rectangle, the minimum number of measurements re...

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