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Understanding Pythagorean Theorem and its real life uses

Understanding Pythagorean Theorem and its real life uses Before I start, I believe you know what a  Square  is, the formula for the area of a square and what a Right angled Triangle is. Let's start. Let me begin with a short story.  There was one clever king in a kingdom. One day, he decided to test how intelligent his people are. So, he makes three plates of gold, of different sizes and places them as show in the figure 1 below. And he asks his people, "If I give you either these two red plates of gold or a single blue plate of gold, which would you choose?" Figure 1 Now, you give me the answer. Which one would you choose? The single blue plate or the red two plates? Most of the king's people chose the two red plates over the two. And I'm pretty sure, you did the same.  Any choice you make, you still are in profit. You know why? They are the same. Surprised? -----------------------------------------------------------------------