The ratio of the length of the room to its width is 4. Find the area of the room if its length is 6 cm.

Determine the width using the equation.

Let the width be x cm.

Let’s compose and solve the equation:

6: x = 4;

x = 6: 4;

x = 1.5 (cm) – the width of the rectangle.

Formula for finding the area of a rectangle:

S = a * b, where a is the width, b is the length of the rectangle.

Find the area:

6 * 1.5 = 9 (cm ^ 2) – area.

Answer: the area of the rectangle is 9 cm ^ 2.