Question

Triangle ABC has a perimiter of 22cm AB=8cm BC=5cm by calculation deduce whether triangle ABC is a right-angled triangle

Answer 1

Answer:

ABC is not a right triangle  

Step-by-step explanation:

The computation is shown below:

AC is

= Perimeter - (AB + BC)

= 22 - (8+5)

= 22 - 13

= 9

Now  

= 9^2 + 13^2

= 81 +169

= 250

And, the perimeter is  

= 22^2

= 484

Since the amount are not equivalent therefore ABC is not a right triangle