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Subject :IMO    Class : Class 7

Three students Pia, Sia and Tia wrote a statement on a blackboard.
Pia wrote, "All rectangles are congruent".
Sia wrote, "All equilateral triangles are congruent".
Tia wrote, "All right angled triangles are congruent".
Who wrote the INCORRECT statement?

A Pia
B Sia
C Tia
D All of them

Option C is correct

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