Fluid Mechanics, Drag Coefficient of a Cylinder

[FChebli]

Homework Statement

Calculate the pressure drag cofficient for a cylinder using the trapezoidal and simpson's rule (assume the flow is the same on both sides of the cylinder).

Angle (deg) Cp
0 1
30 0.274
60 -1.565
90 -1.3
120 -1.288
150 -1.288
180 -1.288

Homework Equations

Cdp = 0.5 ∫ Cp cos∅ d∅

The Attempt at a Solution

How do we apply the given data in trapezoidal & simpson's rules?
Which number represents the first value of the function (y)?

 

[RTW69]

I would change degree to radians. Looks like there a n=6 intervals

f(X0)=1 and f(X6)= -1.288 for both trapezoidal and Simpson's rule

Google if you don't know how to apply these rules. I like patrickJMT website for explanations.