Question

Explain the steps used to determine if Andrea's sum is reasonable.Explain how to add the three distances.

Answer 1

Step-by-step explanation:

Let the 3 distances be ...... 1,2,3,

if you want then periodically with a sequence like a.p

you can do like this....

1+0,1+1,1+2=

which is 1,2,3 let's add them up then you get by

n(n+1)/2

3(3+1)/2====> 12/2 = 6

final answer is 6