单词	congruent figures
释义	congruent figures Two geometrical figures are congruent if they are identical in shape and size. Equivalently there is an isometry that maps one figure onto the other. This includes the case when one of them is a mirror image of the other, and so the three triangles shown here are all congruent to each other. Three congruent triangles
随便看	axiomatic set theory axiom of choice axis axis axis axis axis of rotation axis of symmetry azimuth B Babbage, Charles backward difference backward induction backward scan backward substitution Baire Category Theorem Baire space balanced balanced block design ball Banach algebra Banach measure Banach space Banach, Stefan Banach-Tarski paradox

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