There are two rectangles of equal area. The length of the first is 15 cm and the width is 6 cm

There are two rectangles of equal area. The length of the first is 15 cm and the width is 6 cm which is equal to the width of the second rectangle if the length is 30 cm.

First, let’s find the area of the first rectangle. It is found by the formula S = a * b.
a – length.
b – width.

We know all the data from the condition, so we can find the area.

1) 15 * 6 = 90 (cm2) – the area of the first rectangle.

Now we can find the width of the second rectangle.

2) 90: 30 = 3 (cm) – the width of the second.

Answer: The width of the second rectangle is exactly 3 centimeters.