Which of the following is listed from smallest to largest? Possible answers are, A 1/2,4/9,7/18

B 4/9,7/18,1/2

C 7/18,4/9,1/2

D 7/18,1/2,4/9

When turned about its axis of rotation, which shape could have created this three-dimensional object?

Can someone me and plz do the problem

Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)