can someone help me lol

Answer:
I Think
B. b = sqrt c^2 - a2
Step-by-step explanation:
1. move the a^2 to the other side
b^2 = c^2 - a^2
2. squareroot
b = sqrt c^2 - a^2
Answer:
the answer is number C
[tex] {a}^{2} + {b}^{2} = {c}^{2} \\ {b}^{2} = {c}^{2} - {a}^{2} \\ b = \sqrt{ {c }^{2} - {a}^{2} } [/tex]
Step-by-step explanation:
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