Imagine a triangle DEF, where e = 74.1 cm, f = 85.6 cm, and D= 104°. Solve for all unknown sides and angles in the triangle. Round all answers to one decimal place. The volume of a cylinder is given by the formula V=nr² h, where r is the radius and h is the height. You may choose to write "pi" in place of л. If a cylinder has a volume of 500 cm³ and a radius of 8.5 cm, determine the height of the cylinder, accurate to one decimal place.

Find the three angles of the triangle whose sides have lengths a=6 centimeters, b=8 centimeters, and c=12 centimeters.

Three pieces, each in the shape of a sector, are cut from the rectangular sheet of steel shown. How many Square meters are wasted after the three pieces are cut? Round the answer to the nearest tenth meter.

A 21-mm side, 29-mm side, a 41 angle opposite the 29-mm side.