Answer:
![x=24](https://img.qammunity.org/2021/formulas/mathematics/middle-school/gam9sqkmnmhmynymyt9yhgino966bu1nsv.png)
Explanation:
Since this is a right triangle, we can use the Pythagorean Theorem.
The Pythagorean Theorem is:
![a^2+b^2=c^2](https://img.qammunity.org/2021/formulas/mathematics/middle-school/96dopf217hvzc3zhswffnjr8l5f26vmjhb.png)
The hypotenuse is c, and the legs are a and b.
Plug in 26 for c since 26 is the hypotenuse, and let 10 for a and x be b. Therefore:
![x^2+10^2=26^2](https://img.qammunity.org/2021/formulas/mathematics/high-school/8co3atbiein37g7fdb7i2u28npo6iinwib.png)
Square:
![x^2+100=676](https://img.qammunity.org/2021/formulas/mathematics/high-school/3htxzuymvcrkwwvjsgwvw263yfsyt01s14.png)
Subtract 100 from both sides:
![x^2=576](https://img.qammunity.org/2021/formulas/mathematics/middle-school/w1hxj34wiu4njv74cmpewzpbtz2dzistpb.png)
Take the square root of both sides:
![√(x^2)=√(576)\\x=√(576)=24](https://img.qammunity.org/2021/formulas/mathematics/high-school/d1sw4v3nx7ofth0pzqgzndkc6lekagh86t.png)
The answer is 24.