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In the isosceles ∆XYZ, given XY = YZ then which of the following angles are equal?

Find the value of x° and y° from the following figures:

Find the angles x°, y° and z° from the given figure.

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In Δ ABC and ∆DEF, ∠B = ∠E, AB = DE, BC = EF. The two triangles are congruent under _____ axiom

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Two plane figures are said to be congruent if they have