9 grade maths> Points D and E are taken on sides AB and ...
1 Answers
Last Activity: 7 Years ago
first prove triangle ABC similar triangle ade
angle A is common
angle B = angle D(BC//DE, corresponding angle are equal)
therefore triangle are similar
thus by proportional property of similar triangles
AD/AB = DE/BC
Hope now you are able to proceed.
Regards
Arun
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