Answer: C) 15 cm, D) 10 cm
Explanation:
Let's use the scale to convert the measurements on the drawing to real-life measurements in feet:
3 cm on the drawing = 4 feet in real life
To determine which lines on the drawing would be greater than 12 feet in real life, we need to find the lines on the drawing that correspond to more than 12 feet in real life.
For each line on the drawing, we can convert its length to feet using the scale:
A) 12 cm = (12/3) * 4 = 16 feet
B) 6 cm = (6/3) * 4 = 8 feet
C) 15 cm = (15/3) * 4 = 20 feet
D) 10 cm = (10/3) * 4 = 13.33 feet
Therefore, the lines that are greater than 12 feet in real life are C) 15 cm and D) 10 cm.