66.67cm x 108cm. To know that dimensions of marking scale model we have to calculate how many centimeters are 540 feet and 810 feet we know that’s 4 cm represents 30 feet now we used in the ruler of 3 to 4 cm represents 30 feet 500’ and 800 feet how many centimeters would it be 500 feet 4 cm over 30 feet equals 66.767 cm 810 feet it is 4 cm over 30 he equals 108 cm therefore the dimensions on the scale is 66.67 cm X 180
