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The given figure shows a parallelogram ABCD whose diagonals intersect each other at point O. if OB=6 cm and AC is 6 cm more than BD, find OC.

A

`12cm`

B

`10cm`

C

`9cm`

D

`11cm`

Text Solution

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The correct Answer is:
C
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ICSE-SPECIAL TYPES OF QUADRILATERALS-EXERCISE
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  2. In parallelogram ABCD, angleA=3cm times angleB. Find all the angles of...

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  3. In parallelogram PQRS, angleQ=(4x-5)^(@) and angleS=(3x+10)^(@). Calcu...

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  4. In rhombus ABCD: (i) if angleA=74^(@), find angleB and angleC. (ii...

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  5. In square PQRS: (i) if PQ=3x-7 and QR=x+3, find PS. (ii) if PR=5x ...

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  6. ABCD is a rectangle. If angleBPC=124^(@). Calculate: (i) angleBA...

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  7. ABCD is a rhombus. If angleBAC=38^(@), find: (i) angleACB (ii) ang...

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  8. ABCD is a rhombus. If angleBCA=35^(@), and angleADC.

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  9. PQRS is a parallelogram whose diagonals intersect at M. if anglePMS=...

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  10. . Given: Parallelogram ABCD in which diagonals AC and CD intersect...

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  11. In an isosceles-trapezium, show that the opposite angles are supplemen...

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  12. ABCD is a parallelogram. What kind of quadrilateral is it if: (i) AC...

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  13. Prove that the diagonals of a parallelogram bisect each other.

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  14. If the diagonals of a parallelogram are of equal lengths, the parallel...

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  15. In parallelogram ABCD, E is the mid-point of AD and F is the mid-point...

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  16. In parallelogram ABCD, E is the mid-point of side AB and CE bisect ang...

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  17. In the alongside diagram, the bisectors of interior angles of the para...

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  18. In parallelogram ABCD, X and Y are mid-points of opposite sides AB and...

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  19. The given figure shows parallelogram ABCD. Points M and N lie in diago...

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  20. . The given figure shows a rhombus ABCD in which angle BCD=80^(@). F...

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  21. Use the information given in the following diagram to find the values ...

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