Calculate the surface area of a cone where p=7.87, q=9.38, and r=5.10

Question

calculating the surface area of a cone. Geometry.

Answer 1

p is perimeter

q is height

area=pi*rl l=c

3.14*5.1*10.677=171.065

a^2+b^=c^2

5.1^2+9.38^2=c^2

26.01+87.98; c=10.677