The length of segment ef is 12 cm. triangle d e f is shown. angle e d f is 90 degrees, angle d e f is 30 degrees, and angle e f d is 60 degrees. the length of hypotenuse e f is 12 centimeters. which statements regarding triangle def are correct? select three options.

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

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?