The total area of the house is 195 square meters, divided into three rooms, the width of each room is 4.2. How much is the length of each room? How much is the area of a single room? Thank you

The total area of the house is 195 square meters, divided into three rooms, the width of each room is 4.2. How much is the length of each room? How much is the area of a single room? Thank you

Area formula of rectangle = length × width
Single room area = 195 △ 3 = 65 square meters
Each room is 65 △ 4.2 ≈ 15.48m long