What is the formula of a radius circle ?

On an airplane there are two seats on the left side and three seats on the right side there are 90 seats o the right side of the plane

Consider the functions below. function 1 function 2 function 3 select the statement which is true about the functions over the interval [1, 2] a b function 3 has the highest average rate of change function 2 and function 3 have the same average rate of change. function and function 3 have the same average rate of change function 2 has the lowest average rate of change d.

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180