Final answer:
The area of the circular pizza is 4.5 cm². If it is cut into four equal pieces, each piece will have an area of 1.125 cm².
Step-by-step explanation:
To find the area of a circular pizza, we use the formula A = πr², where A represents the area and r represents the radius. Using this formula, the area of the pizza can be calculated as A = π(22.0 cm)². Plugging in the value for the radius, we get A = 3.14159...(22.0 cm)² = 4.5238934 cm². However, since the radius has only two significant figures, the calculated area is limited to two significant figures, giving us A = 4.5 cm².
If the pizza is cut into four equal pieces, the area of each piece can be found by dividing the total area of the pizza by the number of pieces. So, the area of each piece would be 4.5 cm² / 4 = 1.125 cm² (rounded to three decimal places).