If cosØ=1/6 what are the values of sinØ and tanØ?

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

What is the volume of a cone with a height of 6 cm in the radius of 2 cm

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?