If \( a=7 \mathrm{~cm}, b=5 \mathrm{~cm} \) and \( c=3 \mathrm{~cm}... VIDEO
If \( a=7 \mathrm{~cm}, b=5 \mathrm{~cm} \) and \( c=3 \mathrm{~cm} \), prove that the triangle has an obtuse angle.https://bit.ly/YTAI_PWAP https://www.pw.live
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