Answer:
312feet
Explanation
Given
The distance from home plate to dead center field in Sun Devil Stadium = 402feet
a distance from home plate to first base = 90ft
Required
Distance from first base to dead centre field
home plate to dead center = home plate to first base + base to dead centre field
Substitute the given values
402 = 90 + x
x = 402 - 90
x = 312
Hence the distance from base to dead centre field is 312feet