Circle Theorems

Circle Theorems

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Understanding and Applying the Circle Theorems

In this article, we will explore the fundamentals of circle theorems and their practical applications.

Theorem 1: The Angle in a Semicircle is 90°

This theorem states that for any triangle inscribed inside a circle with the diameter as its hypotenuse, the angle opposite the hypotenuse will always be a right angle. This can be seen in the illustration below.


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