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 ...

New Delhi [India], December 30 (ANI): For generations, Indian students have learnt it simply as the Pythagoras Theorem. In a quiet but significant shift, the Class 8 NCERT mathematics textbook has now ...