Math question: "What is the condition for two triangles to be congruent based on the Side-Side-Side (SSS) rule?"
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Question: Simplify (5^3)^2 - 2^(4+2)^3 using exponent rules.
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Question: In a right triangle, if the angle of elevation to the top of a tree is 45 degrees and the distance from the observer to the base of the tree is 20 meters, find the height of the tree.