A scale drawing of a square rug has a scale factor of 1:3. Which statements are true? The ratio of the area of the scale drawing to the area of the rug is 1:9. The ratio of the area of the scale drawing to the area of the rug is equal to the scale factor. The ratio of the perimeter of the scale drawing to the perimeter of the rug is 1:3. The ratio of the area of the scale drawing to the area of the rug is equal to the square of the scale factor.