What is 2*2 please hello

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

7.(03.01 lc)which set represents the range of the function shown? {(-1, 5), (2,8), (5, 3), 13, -4)} (5 points){-1, 2, 5, 13){(5, -1), (8, 2), (3,5), (-4, 13)){-4, 3, 5, 8}{-4, -1, 2, 3, 5, 5, 8, 13}

Find the solution on the interval [0, 2pi)