Answer:
It is not a right angled troagle
Step-by-step explanation:
Given
Sides: 5m, 7m and 9m
Required
Is it a right angled triangle?
A triangle is right angled if:
[tex]a^2 = b^2 + c^2[/tex]
Where a is the longest side and b,c is any of the other.
So, we have:
[tex]9^2 = 5^2 + 7^2[/tex]
[tex]81 = 25 + 49[/tex]
[tex]81 \neq 74[/tex]
Since they're not equal then it is not a right angled troagle
