On the map below the bike trail from Pfluger bridge to pleasant valley road is 7.6 centimeters how long is the actual trail from Pfluger bridge to pleasant valley road

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)?