There is a right triangle with the length of hypotenuse as 5 and other sides as x and 3 \sqrt { 2 }. Find x.
Choices:
A:\sqrt { 7 }
B:3 \sqrt { 2 }
C:3 \sqrt { 3 }
D:3 \sqrt { 6 }
Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
Question: There is a right triangle with the length of hypotenuse as 5 and other sides as x and 3 \sqrt { 2 }. Find x.
Choices:
A:\sqrt { 7 }
B:3 \sqrt { 2 }
C:3 \sqrt { 3 }
D:3 \sqrt { 6 }
Please first conduct reasoning, and then answer the question and provide the correct option letter, e.g., A, B, C, D, at the end.
Question: There is a right triangle with the length of hypotenuse as 5 and other sides as x and 3 \sqrt { 2 }. Find x.
Choices:
A:\sqrt { 7 }
B:3 \sqrt { 2 }
C:3 \sqrt { 3 }
D:3 \sqrt { 6 }