Answer:

Explanation:
In a right angled triangle, the longest side is called hypotenuse.
So,
Hypotenuse = 13 m
The rest are:
Base = 5 m
Perpendicular = 12 m
Using Pythagoras Theorem to verify:

Put the given data
(13)² = (12)² + (5)²
169 = 144 + 25
169 = 169
Since, both left hand side and right hand side are equal, this means the triangle is a right-angled triangle.
![\rule[225]{225}{2}](https://img.qammunity.org/2024/formulas/mathematics/high-school/yk3l6bxs46equldxx0z8qla0zuvm8l328e.png)