1.

From the following figure; prove that(i) AB >BD(ii) AC > CD(ii) AB + AC > BC

Answer»

We know that the side opposite to the largest angle is largest size in the triangle..

so, in ∆ADB , angle ADB =90 , means AB Is largest of all sides so, AB > BD

also in ∆ADC , angle ADC =90 , means AC Is largest of all sides so, AC > CD

now adding both we get

AB+AC > BD+CD => AB + AC > BC.



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