Answer:
cross sectional area of the wing's is = 3404.8 cm²
Step-by-step explanation:
using n= 5 to estimate area of the wing's
a = 160
taking sum of thickness at n = 1, 3, 5, 7, 9
so sum of the measurement of the thickness at the given position
19.9 +29.0 + 27.5 +20.9 + 9.1 = 106.4
so the thickness is 106.4/5
= 21.28 cm
cross sectional area of the wing's is = 160 × 21.28
= 3404.8 cm²