Given the image below which segments are congruent

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)?

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?

Factor the polynomial. b^2 + 4b + 4