Triangles ABC and DEF are similar. Find the lengths of AB and EF. Right triangles A B C and D E F. Side A B is 5 x, side B C is 4, and hypotenuse A C is unknown. Side D E is 5, E F is x, and hypotenuse D F is blank.
a.
AB = 2; EF = 10
c.
AB = 20; EF = 4
b.
AB = 10; EF = 2
d.
AB = 4; EF = 20

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