Final answer:
The formula for the area of a circle is A = πr², where A represents the area and r represents the radius. To calculate the area, square the radius and multiply it by π. Remember to round the answer to the correct significant figures.
Step-by-step explanation:
The formula for the area of a circle is given by A = πr², where A represents the area and r represents the radius. To calculate the area, you need to square the radius and multiply it by π. For example, if the radius is 1.2 m, the calculation would be:
A = π(1.2 m)² = 4.5238934 m²
However, since the radius has only two significant figures, the calculated quantity should be rounded to two significant figures:
A = 4.5 m²