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There are 2100 bacteria in a circular petri dish. The dish has a radius of 40. What is the area of the petri dish?

1) 5024
2) 5024π
3) 3200
4) 3200π

User Lyla
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1 Answer

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Final answer:

The area of the circular petri dish with a radius of 40 is calculated using the formula A = πr², resulting in an area of 5024π, which is option 2).

Step-by-step explanation:

The question asks for the area of a circular petri dish with a given radius. To calculate the area of a circle, the formula A = πr² is used, where A is the area and r is the radius. The radius provided is 40, so we substitute this into the formula to get A = π * 40². This gives us the area as A = π * 1600, or 5024π when π is approximated to 3.1416 and the multiplication is carried out (5024π is approximately 15,795.504). Thus, between the given options, the correct answer is option 2) 5024π.

User Zeugma
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