The questions are as follows: It is known that BC = 3, AC = 4, BC = 5 in} ABC. If} ABC is folded along the longest side AB so that} ABC 'and} ABC are in the same plane, then CC' is equal to A .12/5 B.5/12 C.5/6 D.24/5 BC = 3, AC = 4, ab = 5, sorry!

The questions are as follows: It is known that BC = 3, AC = 4, BC = 5 in} ABC. If} ABC is folded along the longest side AB so that} ABC 'and} ABC are in the same plane, then CC' is equal to A .12/5 B.5/12 C.5/6 D.24/5 BC = 3, AC = 4, ab = 5, sorry!

(1) If you add the following condition: BC2 + ac2 = 3 + 16 = 25 = AB2 ∧ ABC is a right triangle, and ∧ ACB = 90 °, if you fold along the longest side AB to ∧ ABC / and make C and C / in the same plane, then the quadrilateral ACBC / is a rectangle, and the length of CC / is equal to the length of AB, which is 5