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In quadrilateral ABCD, side AB is parall...

In quadrilateral ABCD, side AB is parallel to side DC. If `angleA : angle D=1:2 and angleC: angleB=4:5`.
(i) Calculate each angle of the quadrilateral.
(ii) Assign a special name to quadrialateral ABCD.

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The correct Answer is:
`(i) angleA=60^(@),angleB=100^(@),angleC=80^(@)and angleD=120^(@)(ii) "Trapexium"`
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NAGEEN PRAKASHAN ENGLISH-QUADRILATERALS-Exercise 8a
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  2. In eqadrilateral ABCD, angleA=100^(@),angleB=70^(@)andangleC:angleD=8:...

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  3. In quadrilateral ABCD, side AB is parallel to side DC. If angleA : ang...

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  4. Find the values of x and y from adjoining parallelogram.

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  5. Find x,y and z in each of the following figure:

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  6. In the given figure, find (i) angleXOD(ii) angleXOC

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  7. In the given figure, ABCD is a square and anglePQR=90^(@).If PB=QC=DR,...

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  8. In a square ABCD, diagonals meet at O. P is point on BC such that OB =...

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  9. The give figure shows a square ABCD and an equilayeral teiangle APB. C...

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  10. In the given figure, ABCD is a rohombus with A=67^(@). If DEC is an eq...

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  11. If the adjacent angles of a parallelogram are in the ratio 1/3:1/2. Fi...

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  12. Prove that the sum of two consecutive angles of a parallelogram is 180...

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  13. One angle of a parallelogram is 60^(@). Find its remaining angles.

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  14. One diagonal of a parallelogram biscets its one of the angles. Show th...

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  15. The opposite angles of a parallelogram are (3x-2)^(@)and(150-x)^(@). F...

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  16. In the adjoining figure, ABCD is a parallelogram. If angleABC=125^(@),...

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  17. In a parallelogram, one angleis twice of its consecutiv angle. Find al...

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  18. In a parallelogram ABCD, AX and CY are the bisectors of angleAandangle...

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  19. In a parallelogram PQRS, PX and QY are the perpendiculars drawn from P...

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  20. In a parallelogram ABCD, the bisector of angleA bisects the line B at ...

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