The rays in both half-planes H1, and H2 have been assigned coordinates according to the Pr...

The rays in both half-planes H1, and H2 have been assigned coordinates according to the Protractor Postulate. Rays  and  have coordinates 70 and 110 in H1 and ray  has coordinate 90 in H2 (as shown). Using betweenness relations evident from the figure, determine the following values:

(a) m∠BAC

(b) m∠BAD

(c) m∠CAD

(d) What betweenness relations among the rays  and  hold, if any?