Use Pythagoras’ theorem to show a triangle is right-angled or to find one side of a right-angled triangle when two sides are known. Make sure you are confident at substituting into and manipulating ...
Akshat was working through a standard geometry exercise, the chapter that introduces the right-angled triangle and the formula a 2 + b 2 = c 2. He paused for a moment, not because the problem was ...
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