Triangle ABC has a perimeter of 22cm

AB = 8cm
BC = 5cm

By calculation, deduce whether triangle ABC is a right-angled triangle.

Please help

No

Step-by-step explanation:

The side lengths of the triangle are 5-8-9

For the triangle to be a right triangle the square length of base and side length should be equal to square length of the hypotenuse

let's check if this triangle have criteria for a right triangle

5^2 + 8^2 = 25 + 64 and that is equal to 89

9^2 = 81

89 is not equal to 81 so this is not a right angled triangle.

1. 3.4/4

2. 0.8/7

3. 0.5 x 3

4. 0.9 x 6

5. 10.8

6. 2.35

7. 0.567

8. 9.35

9. 0.02

10. 0.06

11. 0.16

12. 0.42

13. 0.63

14. 5.6

15. 8.1

16. 9.9

17. 0.28

18. 0.48

19. 0.27

20. 0.49

21. 0.45

22. 0.72

23. 0.9

24. 0.88

25. 0.75

26. 0.16

27. 0.328

28. 0.495

29. 0.72

30. 1.068