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Luba_88 [7]
3 years ago
14

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

Mathematics
2 answers:
Effectus [21]3 years ago
5 0

Answer:

A≈926.54

Step-by-step 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

antoniya [11.8K]3 years ago
4 0

Answer: wouldn't be <u>18 m</u> because half is 9 m.

HOPE THIS HELPS :D

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