35. Prove that "Angles opposite to equal sides of an isosceles triangle are equal". (Draw suitable diagram to prove it) .
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⚘Solution:------
Given:
- In the isosceles △XYZ, XY=XZ
To prove:
- ∠XYZ = ∠XZY
Construction:
- Draw a line XM such that it bisects ∠YXZ and meets the side YZ at M.
Proof:
ㅤㅤㅤㅤㅤㅤㅤIn △XYM and △XZM
ㅤㅤㅤㅤㅤㅤㅤㅤXY = XZ (Given)
ㅤㅤㅤㅤㅤㅤXM = XM (Common Sides)
ㅤㅤㅤ∠YXM = ∠ZXM (XM BISECTS ∠YXZ)
△XYM ≅ △XZMㅤㅤㅤㅤㅤㅤㅤㅤㅤ[By SAS criterion]
∠XYZ = ∠XZY ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤC.P.C.T
ㅤㅤㅤㅤㅤ⚘Hence, Proved!!
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