Answer:
9.8 Inch
Step-by-step explanation:
The distance from the upper left corner to the bottom right corner of the box is the longest diagonal of the box.
For a rectangular prism:
Length of the Longest diagonal 
Therefore:
Length of the pencil

Answer:
402
Step-by-step explanation:
every hour is 60 minutes so multiply 6 by 60. 360 minutes for 6 hours. Then add 42 to it. 402
-plz mark brainliest-
Answer:
It parallel line.
Step-by-step explanation: