Answer:
Answer is 5,770 miles.
Step-by-step explanation:
okay we know ED = 240 miles
we know EC = ED + DC
EC = 240 + 3960
EC = 4200
we know in a right angled triangle, hypotenuse square is the sum of square of sides
EC^2 + CH^2 = EH^2
EH^2 = 4200^2 + 3960^2
EH^2 = 17,640,000 + 15,681,600
EH^2 = 33,321,600
EH = Root 33,321,600
EH = 5772.48
If we round to the nearest ten,
EH = 5770
