<h2>
Answer:</h2>
The radius of the cone is:

<h2>
Step-by-step explanation:</h2>
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.

Let me work this out really quick and I'll get back to you
Answer:
5.35
Step-by-step explanation: