Question

What is the surface area? I can't figure it out...

Answer 1

A≈926.54

Explanation:

π r 2 + π L r , \pi r^2 + \pi L r, πr2+πLr, where r denotes the radius of the base of the cone, and L denotes the slant height of the cone.Using the formulas

A=πrl+πr2

l=r2+h2

Solving forA

A=πr(r+h2+r2)=π·9·(9+222+92)≈926.54225

Answer 2

Answer: wouldn't be 18 m because half is 9 m.

HOPE THIS HELPS :D