5 ft because 3 squared is 9 and 4 squared is 16 9+16=25 25 squared is 5
Answer: Reflection is the change in direction of a wavefront between two different media so that the wavefront returns into the medium from which it originated.
Step-by-step explanation:
Answer:
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The gray line is longer than the white line.
The black line is longer than the gray line.
White -------------------------
Gray ------------------------------------------
Black --------------------------------------------------------
Answer: The black line is longer than the white line.
