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21-03-2019
Mathematics

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Giving brainliest help asap!

Which is the total surface area of this cone?

A) 219.80 sq cm

B) 219.98 sq cm

C) 220.18 sq cm

D) 220.78 sq cm

Giving brainliest help asap Which is the total surface area of this cone A 21980 sq cm B 21998 sq cm C 22018 sq cm D 22078 sq cm class=

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21-03-2019

Answer:

A. 219.80 square centimeters

Step-by-step explanation:

The total surface area is given by ...

A = πr(r+s)

where r is the radius and s is the slant height. Filling in the given numbers, you get ...

A = 3.14·(5 cm)·(5 cm +9 cm) = 219.80 cm²

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