Answer:
109
Explanation:
Given that the figure is a rectangle, then the diagonal and two sides will form a right triangle. This means that the Pythagorean theorem can be applied. The Pythagoren theorem states;
![a^(2) + b^(2) = c^(2)](https://img.qammunity.org/2022/formulas/mathematics/high-school/np5o9ivdu7vwogdwt92j6b2xw98vc0ty49.png)
Where (a) and (b) are the legs or sides, and (c) is the hypothenuse also known as the diagonal or side opposite the right angle.
Substitute;
![a^(2) + b^(2) = c^(2)\\\\60^(2) +91^(2) = c^(2)\\\\3600+8281=c^(2)\\\\11881=c^(2)\\\\109=c](https://img.qammunity.org/2022/formulas/mathematics/high-school/epfgxd2q53jj6u7ypzlj4f1t9nq8zyl0me.png)