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 ...
A cable is attached, 30 metres above ground level, to a post. The other end of the cable is 14 metres from the base of the post. Regulations state that the cable must measure less than 35 metres. If A ...
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