In quadrilateral PQRS above, the length of QR is 3 and the length of SR is 4. Angle P and angle R are right angles. The length of QP and PS are respectively a and b. What is the value of a^2 + b^2?
Choices:
A.8
B.10
C.11
D.12
E.13
Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
Question: In quadrilateral PQRS above, the length of QR is 3 and the length of SR is 4. Angle P and angle R are right angles. The length of QP and PS are respectively a and b. What is the value of a^2 + b^2?
Choices:
A.8
B.10
C.11
D.12
E.13
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: In quadrilateral PQRS above, the length of QR is 3 and the length of SR is 4. Angle P and angle R are right angles. The length of QP and PS are respectively a and b. What is the value of a^2 + b^2?
Choices:
A.8
B.10
C.11
D.12
E.13