To find the distance between two points on the same parallel of latitude, we use the formula:

To find the distance between two points on the same parallel of latitude, we use the formula: D = ()/(360^) × 2 R () where: • is the difference in longitudes. • R is the radius of the Earth. • is the common latitude. • is approximately 3.14. From the problem statement, we are given: Point P: (27^ N, 6^ W) Point Q: (27^ N, 97^ W) Radius of Earth R = 6400 km (from z=6400) = 3.14 (from x=3.14) Step 1: Identify the common latitude and calculate the difference in longitudes. The common latitude is = 27^ N. The longitudes are 6^ W and 97^ W. Since both are in the West, the difference in longitude () is: = |97^ - 6^| = 91^ Step 2: Substitute the values into the distance formula. D = (91^)/(360^) × 2 × 3.14 × 6400 km × (27^) Step 3: Calculate the value of (27^). (27^) ≈ 0.8910 Step 4: Perform the calculation. D = (91)/(360) × 2 × 3.14 × 6400 × 0.8910 D = 0.25277... × 40192 × 0.8910 D = 10160.88... × 0.8910 D ≈ 9053.30 km The distance between points P and Q is approximately 9053.30 km. That's 2 down. 3 left today — send the next one.