The relation between the 3 sides in the right triangle is
![h^2=(l1)^2+(l2)^2](https://img.qammunity.org/2023/formulas/mathematics/college/zrk9i4qq18uozhn8bi11o34n0h5od1blg7.png)
Where h is the opposite side to the right angles
l1 and l2 are the legs of the right angle
h is missing
l1 = 7 and l2 = 7
![h^2=7^2+7^2](https://img.qammunity.org/2023/formulas/mathematics/college/fjbue0xwq6pvqxfijm71ztrdd0mup70559.png)
![\begin{gathered} h^2=49+49 \\ h^2=98 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/n6hs49itgiknxffmmk97jtqlz5ibb4kmj1.png)
Take square root for both sides to find h
h = 9.899494937
Round it to the nearest whole number
h = 10
The answer is C