Question

The cone pictured has a surface area of___ square meters. (Use 3.14 for π .)

Answer 1

The area of the base is
.. A = πr^2
The lateral area is
.. A = πrh . . . . . where h is the slant height
The total area is
.. π(r^2 +rh) = πr(r +h)

total surface area = 3.14*(5 m)*(5 m +11 m) = 251.2 m²