Find the missing measure for a right circular cone given the following information.

find r if t. a. = 12 and l. a. = 8.

The radius of the cone is:

The total area of cone is given by:

where r is the radius of the cone and l is the slant height of the cone.

and the lateral area of cone is given by:

Hence, from equation (1) and (2) we have:

i.e.

i.e.

step-by-step explanation:

here's what happens:

1) the graph of f   = x^2 is shifted 2 units to the right.

2) the resulting graph is reflected in the x-axis, so that the parabola now opens down.

3) this final result is transformed up by 5 units.