What are the coordinates of the terminal point determined by t=10pie/3

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?

Write the pair of fractions as a pair of fractions with a common denominator