Geometry for Elementary School/The Right angle-Hypotenuse-Side congruence theorem

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Geometry for Elementary School
The Side-Angle-Angle congruence theorem The Right angle-Hypotenuse-Side congruence theorem Similarity

In this chapter, we will discuss the right angle-hypotenuse-side congruence theorem, often shorted to RHS. Some people call it the hypotenuse-leg congruence theorem, which is shortened to HL. It is special because it can only be used on right-angled triangles.