What’s the degree and leading coefficient?

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

Based on the diagram, match the trigonometric ratios with the corresponding ratios of the sides of the triangle. tiles : cosb sinb tanb sincposs matches: c/b b/a b/c c/a

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how