Hi there!
To spoke this problem, we need to use the pythagorean theorem.
Let's say the length of the "triangle" is 12, and the width is 9.
Since the pythagorean theorem states that
[tex] {a}^{2} + {b}^{2} = {c}^{2} [/tex]
we can use this to find the approximate value of the triangle, or length.
[tex] {9}^{2} + {12}^{2} = {c}^{2} [/tex]
[tex]81 + 144 = {c}^{2} [/tex]
[tex]225 = {c}^{2} [/tex]
[tex] \sqrt{225} = c[/tex]
The square root of 225 is approximately 15, so 15 is the answer.
Hope this helps!
