(Help please!! Medal for help!) Which of the following expressions represents the lateral area of a right cone with r units as the radius of its base, l units as its slant height, and h units as its height?
pirh
2pirh
pir2
pirl

Question

(Help please!! Medal for help!) Which of the following expressions represents the lateral area of a right cone with r units as the radius of its base, l units as its slant height, and h units as its height? 
pirh 
2pirh 
pir2 
pirl <--- My answer 
Am I correct?

anonymous · Answer

Which is the best approximation of the total surface area of this right cone?

(Points : 1)
       60 cm2

       91 cm2

       113 cm2

       141 cm2
Not sure.. Please help..