Final answer:
To calculate the estimated area of the wing's cross-section using the Midpoint Rule, find the average thickness and multiply it by the width of each interval.
Step-by-step explanation:
To calculate the estimated area of the wing's cross-section using the Midpoint Rule, we need to find the average of the thickness measurements and multiply it by the width of each interval.
Step 1: Find the average of the thickness measurements. (6.1 + 19.9 + 26.3 + 29.0 + 27.6 + 27.3 + 23.3 + 20.6 + 15.4 + 8.8 + 2.5) / 11 = 20.91 cm.
Step 2: Calculate the width of each interval. 21 cm / 5 = 4.2 cm.
Step 3: Multiply the average thickness by the width of each interval. 20.91 cm * 4.2 cm = 87.51 cm².