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CBSE Class 9 Answered

A TRIANGLE ABC IS RIGHT ANGLED AT A.  L IS A POINT ON BC SUCH THAT AL IS PERPENDICULAR TO BC .PROVE THAT ANGLE BAC=ANGLE ACB
Asked by vrishti TOKAS | 28 Jul, 2015, 08:30: PM
answered-by-expert Expert Answer
W e space h a v e space t o space p r o v e space angle B A L equals angle A C B L e t space angle B A L equals x comma space angle A C L equals y I n space increment B A L comma angle L A C equals 90 degree minus x I n space increment A C L comma angle A C L plus angle A L C plus angle L A C equals 180 degree angle A C L plus 90 degree plus 90 degree minus x equals 180 degree angle A C L plus 180 degree minus x equals 180 degree angle A C L minus x equals 0 angle A C L equals x therefore angle A C L equals angle A C B equals x therefore angle B A L equals angle A C B H e n c e space P r o v e d
 
Answered by Prasenjit Paul | 29 Jul, 2015, 11:27: AM

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CBSE 9 - Maths
find value
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Asked by pushpadevipushpadevi19 | 13 Jan, 2023, 08:06: PM
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CBSE 9 - Maths
plz answer urgently dear experts lines and angles question :
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Asked by savitamahajan202 | 02 Jan, 2023, 10:55: AM
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CBSE 9 - Maths
If two lines are parallel then prove that any pair of bisictors of thier alternate interior angle is also parallel.
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Asked by amarjitruksh | 20 Jun, 2022, 10:40: PM
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CBSE 9 - Maths
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Asked by shubhgoel7a | 20 Sep, 2019, 09:58: PM
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CBSE 9 - Maths
kindly give solution to the question in the image.
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Asked by bhvyajot | 17 Oct, 2018, 11:03: AM
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CBSE 9 - Maths
the diagram for the 8th question.
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Asked by seeni2005 | 30 Jul, 2018, 07:44: PM
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CBSE 9 - Maths
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Asked by yogeshc2 | 01 Jun, 2018, 04:48: PM
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CBSE 9 - Maths
If a transversal intersects two parallel lines, then prove that each pair of consecutive interior angles are supplementary.
Asked by Topperlearning User | 04 Dec, 2013, 10:06: AM
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CBSE 9 - Maths
Show that in the given figure, AB || EF.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 9 - Maths
If two lines are intersected by a transversal in such a way that the bisector of a pair of angles are parallel, show that the two lines are parallel.
Asked by Topperlearning User | 04 Dec, 2013, 10:27: AM
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