the world around us. This essay will delve into the beauty and significance of mathematics, discussing its historical development, key concepts, and real-world applications.

Historical Development:

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\f\f\f\f\f\fQuestion 12: Show that the relation R defined in the set A of all triangles as R = {U}, T3): T, is similar to T,}, is equivalence relan'on. Consider three right angle triangles T, with sides 3, 4. 5. T; with sides 5, 12. 13 and T3 WIth sides 6. 8, 10. which triangles among T1, T; and T; a re related ? \f\f\f\f\f\f\f\f\f\f\f\f\f