CBSE Class 9 Answered
Prove that angles opposite to equal sides of a triangle are equal.
Asked by Topperlearning User | 20 May, 2014, 03:27: PM
Expert Answer
Given: In triangle ABC, AB = AC.
To prove: B = C
Construction: Draw AD perpendicular to BC.
Proof:
In ADB and ADC
AB = AC(given)
1 = 2(each 90o)
AD = AD(common)
Therefore, In ADB ADC(By RHS)
Thus, B = C(By cpct)
Hence proved.
Answered by | 20 May, 2014, 05:27: PM
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