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• CBSE×
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Home /Doubts and Solutions/CBSE/Class 9/Mathematics/Lines And Angles/Parallel Lines And Co Interior Angles

# Parallel Lines And Co Interior Angles Free Doubts and Solutions

### CBSE - IX - Mathematics - Lines and Angles

Asked by Girishdhawan 1st July 2018, 3:19 PM

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## can u explain me the full chapter sir

Asked by Veena 1st August 2016, 11:55 AM

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## In figure, AB||DC, BDC = 30° and BAD = 80°, find x, y and z.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## AB and CD are the bisectors of the two alternate interior angles formed by the intersection of a transversal 't' with parallel lines l and m (Shown in Figure) Show that AB||CD.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## In the given figure, l||m, then find the value of x?

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## If fig., if AB||CD, EFCD and GED = 126°, find AGE, GEF and FGE.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## In figure, prove that .

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## In given figure, find the values of x and y.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## In fig., AB||CD and CD||EF. Also EA AB. If BEF= 40o, then find x, y, z.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## In fig., if AB||CD, APQ = 50o and PRD = 127o, find x and y.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## In fig., l||m, show that 1 + 2 - 3 = 180o

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## In fig., PQ||RS and T is any point as shown in figure then show that PQT + QTS + RST = 360o

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## In figure, if AB||CD then find PQR.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## In figure prove that l||m.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## In fig., l1||l2 and m1||m2. Prove that 1 + 2 = 180o.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## Lines AB and CD are parallel and P is any point between the two lines as shown in figure. Show that DPB = x + y.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## In figure, if AB||DE, ABC = 75o and CDE = 145o, then find BCD.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## In figure, PQ PS, PQ||SR, SQR = 25o and QRT = 65o. Find the value of x and y.

Asked by Topperlearning User 4th June 2014, 1:23 PM

## Answer this question

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### CBSE - IX - Mathematics - Lines and Angles

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## If the arms of one angle are respectively parallel to the arms of another angle, as shown in the figure then prove that the two angles are supplementary.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## Prove that two lines which are parallel to the same line are parallel to one another.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## AB || CD. Find the values of p, q and r.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## For what value of x will the lines m and n be parallel to each other?

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## The arms of an angle are respectively parallel to the arms of another angle as shown in the figure. Show that the two angles are equal.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## In the given figure, AB || CD. Find the values of x, y and z.

Asked by Topperlearning User 4th June 2014, 1:23 PM

## Answer this question

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### CBSE - IX - Mathematics - Lines and Angles

Asked by Topperlearning User 4th June 2014, 1:23 PM

## Answer this question

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### CBSE - IX - Mathematics - Lines and Angles

Asked by Topperlearning User 4th June 2014, 1:23 PM

## Answer this question

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### CBSE - IX - Mathematics - Lines and Angles

Asked by Topperlearning User 6th December 2013, 2:35 AM

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## Two parallel lines are intersected by a transversal in such a way that, the co-interior angles such that one angle is thrice the other. Find the angles.

Asked by Topperlearning User 4th December 2013, 1:25 AM

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## RS || PQ. Find the value of x.

Asked by Topperlearning User 30th April 2013, 9:00 AM