Answer:
c. 3 square root ( 3 ) cm
Explanation:
C^2 = A^2 + B^2
A^2 = C^2 - B^2
= 6^2 - 3^2
= 36 - 9
A^2 = 27
A = 3√3 cm
3sqrt3 cm
6^2-3^2
36-9=27
sqrt27 = 3sqrt3
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