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Diagonals of a parallelogram ABCD inters...

Diagonals of a parallelogram ABCD intersects at O. if `angleBOC=90^@` and `angleBDC=50^@`. Then find `angleOAB`.

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MODERN PUBLICATION-QUADRILATERALS-EXERCISE
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  2. PQRS is a parallelogram. Find the values of x and y

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  3. Diagonals of a parallelogram ABCD intersects at O. if angleBOC=90^@ an...

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  4. In the fig. ABCD is a rectangle in which diagonal AC is produced to E....

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  5. ABCD is a trapezium with parallel sides AB = a cm and DC = 6 cm E and ...

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  6. True/false If all the sides of quadrilateral are equal, then it is a r...

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  7. True/false Diagonals of a paralllelogram are perpendicular to each oth...

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  8. True/false All the four angles of a quadrilateral can be obtuse angles...

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  9. True/false Diagonals of a rhombus are perpendicular but unequal.

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  10. The figure formed by joining the midpoints of the consecutive sides of...

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  11. True/false If three angles of quadrilatera are 30^@,80^@,110^@ then th...

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  12. In a parallelogram, sum of any two adjacent angles is 180^@.

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  13. True/false Consecutive angls of a parallelogram are complementary.

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  14. True/false If in a quadrilateral one pair of opposite sides are parall...

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  15. True/false If one angle in a parallleogram is a right angled, then it ...

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  16. Fill ups In a parallelogram the opposite sids are……………. .

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  17. Fill ups A square, rectangle and rhombus are……………. .

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  18. Fill ups In a parallelogram ……………bisect each other.

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  19. Fill ups A quadrilateral is a parallelogram if both pairs of opposite ...

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  20. Fill ups If one pair of opposite sides are equal and parallel, then th...

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