Answer:
To find the dimensions of the actual painting, we need to use the scale factor of 4:1. This means that the actual dimensions of the painting are four times larger than the scaled dimensions.
Let's start with the width of the actual painting:
8 inches (scaled width) × 4 = 32 inches (actual width)
Now, let's find the height of the actual painting:
10 inches (scaled height) × 4 = 40 inches (actual height)
Therefore, the dimensions of the actual painting are 32 inches by 40 inches.