Answer:
15.205
Step-by-step explanation:
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The midpoint formula for a segment is:

apply to points R and P

using the definition of slope find the slope of the segment

apply to points R and P

to lines are parallel when the slopes are the same

two lines are perpendicular when the product of the slopes is equal to -1
Step-by-step explanation:
you look for the slant height and the volume
The answer is 308 by multiple