Answer:
324cm²
Explanation:
Given the scale conversion;
3 centimeter = 5 feet
x = 30 feet
Cross multiply
5x = 3 * 30
5x = 90
x = 90/5
x = 18cm
Hence the side length in cm is 18cm
Area of the square = L²
Area of the square = 18²
Area of the square = 324cm²
Hence the area of the scale drawing is 324cm²