Final answer:
The area of the scale drawing of a square park with side length 30 feet, using a scale of 3 cm = 5 feet, is found to be 324 cm².
Step-by-step explanation:
The question asks for the area of a scale drawing of a square park, with a real-life side length of 30 feet, using the scale 3 centimeters = 5 feet. To solve this, we first need to determine the scale drawing's side length in centimeters. If 5 feet is represented by 3 centimeters on the drawing, then 30 feet will be represented by (3 cm / 5 ft) × 30 ft, which calculates to 18 cm. Thus, each side of the scale drawing of the square park is 18 cm long. To find the area, which is side × side, we multiply 18 cm by 18 cm, resulting in an area of 324 cm². Therefore, the correct answer is option c) 324 cm².