Question

Triangle ABC has a perimeter of 22cm

AB = 8cm
BC = 5cm

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

Please help

Answer 1

No

Explanation:

8²+5²=89

√89

=9.43

=9.43+8+5

=22.43 cm

Answer 2

No

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.