The volume of a right rectangular prism can be found by using the product 6(4)(18). which expression could also be used to determine the volume of this prism?

∆red ≅ ∆ by rule will give brainiest if possible

If the value of cos330°is√3/2 then find cos 165°.

Will mark brainliest for correct answer! i have been on this problem for an hour and can't find the answer. i'm begging here! incase you cant read the instructions in the picture because of too much or too little lighting: note: enter your answer and show all the steps that you use to solve this problem in the space provided.write a list of steps that are needed to find the measure of b. provide all steps as clear as possible, !