Find the surface area of the right cone. Leave your answers in terms of TT. 7. 18 mm 42 mm cm

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.

Determine the circumference of a circle with a radius of 4.25". Round the answer to 2 decimal places.

Find the height of a storage tank in the shape of a right circular cylinder that as a circumference measuring 6 m and a volume measuring 81m3.