CBSE Class 9 Answered
In the given figure, ABD = 130° and EAC = 120°. Prove that AB > AC.
Asked by Topperlearning User | 11 Aug, 2017, 09:21: AM
Expert Answer
1300+ABC = 1800[linear pair]
ABC = 180o-130o = 50o ….(i)
In ABC, side BA is extended to E
So EAC = ABC+ACB (exterior angle is equal to the sum of pair ofinterior opposite angles)
ACB = 1200 - 500 = 700
InABC,ACB> ABC
Thus, AB>AC [side opposite to greater angle is larger]
Answered by | 11 Aug, 2017, 11:21: AM
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