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Using angle bisector theorem to determine missing length of a triangle
👉 Learn how to solve with similar triangles. Two triangles are said to be similar if the corresponding angles are congruent ...
In this triangle \(a^2 = b^2 + c^2\) and angle \(A\) is a right angle. Pythagoras' theorem only works for right-angled triangles, so you can use it to test whether a triangle has a right angle or not.
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