About twenty years ago, Olgur Celikbas attended a conference on algebra in Turkey. He and his then girlfriend, Ela Özçağlar, had recently graduated from college in Ankara; both had studied math. At ...
The rectangle ABCD has been enlarged by a scale factor of \(-\frac{1}{2}\). The lengths in rectangle A'B'C'D' are \(\frac{1}{2}\) times as long as rectangle ABCD. The ...
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