Answer:
By using The Pythagorean Theorem:
![/Hypotenuse/^(2) = /Length of altitude/^(2) + /Length of leg/^(2) \](https://img.qammunity.org/2021/formulas/mathematics/high-school/pdcqi75ati4o9ffd9ofpblo10ookbbq0hr.png)
/Hypotenuse/ =
![\sqrt\ /Length of altitude/^(2) + /Length of leg/^(2) \}](https://img.qammunity.org/2021/formulas/mathematics/high-school/cg8n74ivsq1oaubkqqbh28f6siqxsy2xhs.png)
Explanation:
The Pythagorean theorem states that: Given a Right-angled triangle, the square of the hypotenuse equals the sum of squares of the other two sides ( Here, being the length of the altitude and length of leg). That is,
and hence,
/Hypotenuse/ =
![\sqrt\ /Length of altitude/^(2) + /Length of leg/^(2) \}](https://img.qammunity.org/2021/formulas/mathematics/high-school/cg8n74ivsq1oaubkqqbh28f6siqxsy2xhs.png)
For example, If the length of the altitude is 4m and the length of leg is 3m. Using The Pythagorean theorem, the length of the hypotenuse will be
![/Hypotenuse/^(2) = /Length of altitude/^(2) + /Length of leg/^(2) \\\/Hypotenuse/ = \sqrt{/Length of altitude/^(2) + /Length of leg/^(2)} \\/Hypotenuse/ = \sqrt{4^(2) + 3^(2) }](https://img.qammunity.org/2021/formulas/mathematics/high-school/qmfo0kvv8wk6nmweh90y5ka4yj0os6g41w.png)
![/Hypotenuse/ = √(16+9) \\/Hypotenuse/ = √(25) \\/Hypotenuse/ = 5m](https://img.qammunity.org/2021/formulas/mathematics/high-school/lweaa4jfyqvodf4kawtydny3pdlg5pzgsj.png)
The length of the hypotenuse for the given example will be 5m.
This is how to find the length of an hypotenuse.