A glass ornament in the shape of a cone is placed onto a horizontal table. The cone has a radius of 7cm and a vertical height of 24cm. The surface area of the glass, in cm squared, in terms of pi is what?
A formula for the surface area of a cone is: SA = πr² + πr√(h² + r²)
Substituting: SA = π(7)² + π(7)√( (24)² + (7)² )
SA = 49π + 7π√( 576 + 49 )
SA = 49π + 7π√(625)
SA = 49π + 7x25π
SA = 49π + 175π
SA = 224π