What are the roots of a problem (math)

(a) compute the maclaurin polynomial m2(x) for f(x) = cos x. (b) use the polynomial of part (a) to estimate cos π 12. (c) use a calculator to compute the error made using the estimate from part (b) for the value of cos π 12. remember that the error is defined to be the absolute value of the difference between the true value and the estimate.

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

Are the corresponding angles congruent? explain why or why not.