Mrs. Avila buys 55.5 feet of border, which includes 5 extra feet, so the total perimeter of her kitchen is actually how many feet?

If the value of cos330°is√3/2 then find cos 165°.

Thanh and her crew are building a stage in the shape of a trapezoid for an upcoming festival. the lengths of the parallel sides of the trapezoid are 14 ft and 24 ft. the height of the trapezoid is 12 ft.what is the area of the stage? enter your answer in the box. ft²

Asource of laser light sends rays ab and ac toward two opposite walls of a hall. the light rays strike the walls at points b and c, as shown below: what is the distance between the walls?