Question

The radius of a chemically contaminated area is 550m. Approximately how much area is chemically contaminated?

a) 950 m²
b) 1,200 m²
c) 950,000 m²
d) 1,200,000 m²

Answer 1

The approximate area of the chemically contaminated area with a radius of 550m is 950,000 m².

Step-by-step explanation:

The area of a circle is calculated using the formula A = πr^2, where A is the area and r is the radius. In this case, the radius is given as 550m. So, the area of the chemically contaminated area is A = π(550m)^2.

Using the value of π as 3.14 and calculating the area, we get A ≈ 3.14 × (550m)^2.

This gives us an approximate area of 950,000 m². Therefore, the answer is c) 950,000 m².