Euclid stated that 'all right angles are equal to one another', in the

1.	Euclid stated that 'all right angles are equal to one another', in the form of ____.
A.	an axiom
B.	a definition
C.	a postulate
D.	a proof
Answer» D. a proof

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Euclid stated that 'all right angles are equal to one another', in the form of ____.

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