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earnstyle [38]
3 years ago
14

Calcite the area of sphere radius 3 give your answer in 1 decimal place ​

Mathematics
2 answers:
alexgriva [62]3 years ago
5 0

Answer:

113.1 units²

Step-by-step explanation:

Surface area of sphere = 4×pi×r²

= 4 × pi × 3²

= 36pi units²

= 113.0973355 units²

= 113.1 units²

Lisa [10]3 years ago
3 0

Answer: I assume you mean surface area of a sphere.

The formula is 4πr²

If radius=3, then:

4 times \frac{22}{7} times 3²

4 times \frac{22}{7} times 9

= 113.142857

Rounded to 1 decimal place = 113.1

<u>NOTE: In place of π you can also use 3.14.</u>

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Step-by-step explanation:

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