Answer:
A. 300 square cm.
Step-by-step explanation:
• The area of the scale drawing = 12 square cm
,
• Scale Factor = 1:5
To find the area of the real observation, multiply the area of the scale drawing by the square of the scale factor.
![\begin{gathered} \text{Area}=12*5^2 \\ =12*25 \\ =300\operatorname{cm}^2 \end{gathered}]()
The area of the real drawing is 300 square cm.