Final answer:
The area of the house is 0.000195 km², 19,500 dm², and 1,950,000 cm² after conversion from 195 m².
Step-by-step explanation:
The area of a house is given as 195 m², and we are asked to convert it to different units: kilometers squared (km²), decimeters squared (dm²), and centimeters squared (cm²).
To convert 195 m² to km², we use the conversion factor where 1 km² = 1,000,000 m². Therefore, 195 m² is equal to 195 / 1,000,000 km², which is 0.000195 km².
To convert 195 m² to dm², we use the conversion factor where 1 dm² = 0.01 m². Therefore, 195 m² is equal to 195 / 0.01 dm², which is 19,500 dm².
To convert 195 m² to cm², we remember that 1 cm² = 10-4 m². So, 195 m² is equal to 195 / 10-4 cm², which is 1,950,000 cm².