The parcel is rectangular 400 m long and 45% wide. Calculate the area of the parcel.

It is known from the condition that the length of the rectangular section is 400 meters, and the width is 45% of its length. For. to calculate the area of the plot we have to find the width. To do this, we will compose and solve the proportion.

Let’s take the length of the section as 100%, and we’ll take the width of the section as x meters.

Let’s compose and solve the proportion.

400 meters – 100%;

x meters – 45%;

400 / x = 100/45;

x = (400 * 45) / 100 = 180 meters width of the rectangle.

Let’s remember the formula for finding the area of a rectangle.

S = a * b = 400 * 180 = 72,000 m2.