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3 years ago

Please help me question is in the picture

Mathematics

1 answer:

tekilochka [14]3 years ago

8 0

Answer:

172.70 sq. ft.

Step-by-step explanation:

The surface area of a circular cone is

$SA = \pi r^{2} + \pi rl$ r = radius of base l = slant height

r = 4.4 and l = 8.1

$SA = 3.14 (4.4^{2}) + 3.14(4.4)(8.1)\\$

SA = 3.14(19.36) + 111.9096

= 60.7904 + 111.9096

= 172.70 sq. ft.

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