184k views
0 votes
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
by
8.8k points

1 Answer

4 votes

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
by
8.9k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.