
and so the aliens will need 56 power pouches for each day of the trip.
Isosceles and a right triangle
The rest station is the midpoint of the given coordinates:
(-20+35)/2 , for the x value and (15+-12)/2 for the y value.
Coordinates of the rest station: (7.5, 1.5)
How far is the destination? Use the distance formula : D² = √(x1-x2) + (y1-y2)
(-55)² + (27)² = D² D = √3754 = 61.27
12 1/2 = 12.5
2.5mm = 2.5 cm
So the answer would be 15 cm