Look at the figure: cos x° = 8 divided by f
cos x° = f divided by 8
cos x° = 8f
cos x° = 8e

How do i do this? i don’t understand

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)