Triangle ABC has perimeter 22 cm.AB=8 cmBC=5 cmBy calculation, deduce whether triangle ABC is a right-angled triangle.

Answer:No, its not a right angle triangle. check for explanation below ↓In order to figure whether ABC is a right-angled triangle.First find the missing side:22 - 8 - 59 cmso the sides are 5 cm, 8 cm, 9 cmusing the rule:short side² + short side² = biggest side²5² + 8² = 9²25 + 64 = 8189 = 81Thus found ABC is not a right-angled triangle.