Math Question: Convert the number 6.5 × 10^4 into standard notation.
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Math question: Given two triangles with sides AB = 6cm, BC = 8cm, and AC = 10cm, and corresponding sides A'B', B'C', and A'C' of another triangle, are the triangles congruent?
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What is the probability of drawing a heart from a standard deck of 52 cards?