Use 8 identical rectangular floor tiles just to form a rectangular pattern with a width of 20 cm, so how many square centimeters is the area of each rectangular floor tile?

Use 8 identical rectangular floor tiles just to form a rectangular pattern with a width of 20 cm, so how many square centimeters is the area of each rectangular floor tile?

According to the length of the large rectangle: the length of the small rectangle is three times the width of the small rectangle; according to the width of the large rectangle: the length of the small rectangle + the width of the small rectangle = 20 cm; 20 △ 3 + 1 = 20 △ 4 = 5 (CM) 5 × 3 = 15 (CM) 15 × 5 = 75 (square cm) answer: the area of each long square tile is 75 square cm