Acone has a diameter of 6 cm and a height that is 5 times the diameter use 3.14 for pie which of the following could be used to calculate volume of the cone

With this one. will mark brainliest

Which is a true statement comparing the graphs of x^2/6^2-y^2/8^2 = 1 and x^2/8^2-y^2/6^2 the foci of both graphs are the same points. the lengths of both transverse axes are the same. the directrices of = 1 are horizontal while the directrices of = 1 are vertical. the vertices of = 1 are on the y-axis while the vertices of = 1 are on the x-axis.

Find the solution to this system 2,1 1,-2 1,2 -1,2