Plzz help it's due today​

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

Atoy company is considering a cube or sphere-shaped container for packaging a new product. the height of the cube would equal the diameter of the sphere . compare the volume to surface area ratios of the containers. which packaging will be more efficient? for a sphere, sa =4πr²

Which expression is equivalent to 5r6141 2r+st6