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Show that any four vertices of a regular...

Show that any four vertices of a regular pentagon form a cyclic quadrilateral.

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Four particles each having a charge q, are placed on the four vertices of a regular pentagon. The distance of each corner from the centre is a. Find the electric field at the centre of the pentagon.

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ICSE-REVISION PAPER -4-SECTION - B
  1. Two circles touch each other extermally at point P. APC and BPD are st...

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  2. Two circles touch each other extermally at point P. APC and BPD are st...

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  3. 21 glass spheres, each of radius 2cm are packed in a cuboidal box of ...

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  4. The point P divides the joining of (2,1) and (-3,6) in the ratio 2:3. ...

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  5. Find the common ratio of an infinte GP. Whose each term is ten times t...

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  6. A dividend of 9% was declared on 100rs share selling at a certain pric...

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  7. A divident of 9% was declear on Rs 100 shares selling at a certain pri...

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  8. A circle, with centre O, circumscribs a pentagon ABCDE. IF AB- BC= CD ...

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  9. A circle, with centre O, circumscribs a pentagon ABCDE. IF AB- BC= CD ...

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  10. A circle, with centre O, circumscribs a pentagon ABCDE. IF AB- BC= CD ...

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  11. The hotel bill for a number of persons for overnight stay is Rs 4,800 ...

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  12. Show that any four vertices of a regular pentagon form a cyclic quadri...

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  13. If cos ec theta - sin theta = m and sec theta - cos theta = n, then sh...

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  14. about to only mathematics

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  15. Find the mean of the following data :

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  16. In the given PR is the bisector of angle BPC.It meets BC and AD at poi...

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  17. In the given PR is the bisector of angle BPC.It meets BC and AD at poi...

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  18. Construct a triangle PQR, in which PR = 6 cm and PQ = QR = 6.8 cm. ...

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  19. Construct a triangle PQR, in which PR = 6 cm and PQ = QR = 6.8 cm. ...

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  20. Solve using formula : 6x ^(2) - 35 x + 50 = 0

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