Answer: 2²+5²=c²
Explanation:
To find the length of the hypotenuse of a right triangle you can use the Pythagorean theorem, that can be written as:
a²+b²=c², where c represents the length of the hypotenuse and a and b the lengths of the triangle's other two sides.
In this case, a=2, b=5 and c=c, so according to the Pythagorean theorem:
2²+5²=c²