The perimeter of the rectangle

In this rectangle, $KL$ equals $10$ y $LM$, a $4$. We are asked to obtain the perimeter of the rectangle. As we have already specified, we know that the parallel sides are identical and, thus: $KL=MN=10$, while $LM=NK=4$. Thus: $P=10+10+4+4=28$

This can also be expressed as follows: $P=10×2+4×2=28$

If you are interested in this article, you may be interested in the following articles:

Rectangle

Area of a rectangle

Rectangles of Equivalent Area and Perimeter

From a quadrilateral to a rectangle

In Tutorela' s blog you will find a variety of interesting articles about mathematics.

Question:

What is the perimeter each of the two rectangles according to the data?

Solution:

To calculate the area of the rectangle we use the calculus formula.

The perimeter of the rectangle is equal to the sum of all its sides.

We divide the answer by 2:

The perimeter of the rectangle $ABCD$ (large) will be.$AB+BC+CD+DA$

The perimeter of the large rectangle is $4+5+4+5+4+4=26$

The perimeter of the rectangle $EFGD$ (small) will be $EF+FG+GD+DE$

The perimeter of the small rectangle is $2+2+4+4=12$

Answer:

The perimeter of the rectangle $ABCD$ is $26$ cm.

The perimeter of the rectangle $EFGD$ is $12$ cm

Given the rectangle that the side $AB$ is equal to $2$ cm and the side $BC$ is equal to $7$ cm.

Question:

What is the value of the perimeter of the rectangle?

Solution:

To solve for the answer we will put the data into a formula for calculating the area of a rectangle which is basically calculating all the sides of the rectangle:

Since the parallel sides of the rectangle have the same length, it can be said that:

$AB=2$

$DC=2$

$BC=7$

$AD=7$

Therefore the calculation of the perimeter is:

$2+2+7+7=18$

Answer:

$18$

Given a rectangle with a side $AB$ of $4.8$ cm long and a side $AD$ of $12$ cm long.

Question:

What is the perimeter of the rectangle?

Solution:

To solve for the answer we will put the data into the formula for calculating the area of the rectangle which is basically calculating all the sides of the rectangle:

Since the parallel sides of the rectangle have the same length, it can be said that:

$AB=4.8$

$DC=4.8$

$BC=12$

$AD=12$

Therefore the calculation of the perimeter of the rectangle is:

$4.8+4.8+12+12=33.6$

Answer:

$33.6 cm$

Given the rectangle in the figure:

The perimeter of the rectangle is $30$.

Question:

How much is its area?

Solution:

Pay attention, in this question we are asked to calculate the area of the rectangle.

The data we have are:

one side (sides also serve as height in a rectangle). $=5$

Together they are equal to $10$

Step $2$, we know that the perimeter of the rectangle is 30 so we can conclude that the perimeter of the two sides of the base is $20$ and since they are equal to each other (the properties of the rectangle) each is equal to $10$.

To solve this question we must put the data into a formula to calculate the rectangular area:

The formula to calculate a rectangular area is: Height multiplied by the base.

Put the data we have into the formula:

Base = $10$

Height=$5$

Answer:

Area of the rectangle is equal to $50$ cm².

It is a geometric figure with 4 sides where it consists of two pairs of parallel opposite straight lines, its angles measure $90^o$

The perimeter of any geometric figure is to calculate the sum of all its sides, in the case of the rectangle is to add its 4 sides, i.e. the entire contour of the geometric figure, it is worth mentioning that the rectangle has two pairs of equal sides.

In order to calculate the perimeter of a rectangle, we must calculate the sum of all its sides, let it be the following rectangle given with base and height

Then the formula for the rectangle to calculate the perimeter is:

$P=b+h+b+h$

Ó

$P=2b+2h$

Since as we said the rectangle has two pairs of equal sides.

The formula for the rectangle is as follows:

$A=Base\times altura$

$A=b\times a$

Given the following rectangle calculate perimeter and area:

According to these data, and as we know that a rectangle its opposite sides measure the same then we have the following:

$AB=6\operatorname{cm}$

$BC=9\operatorname{cm}$

$CD=6\operatorname{cm}$

$DA=9\operatorname{cm}$

According to the perimeter formula we add up all its sides.

$P=AB+BC+CD+DA$

$P=6\operatorname{cm}+9\operatorname{cm}+6\operatorname{cm}+9\operatorname{cm}=30\operatorname{cm}$

Now let's calculate the area, using the area formula we have that

$A=Base\times altura$

So:

$A=9\operatorname{cm}\times6\operatorname{cm}=54cm^2$

Answer

$P=30 {cm}$

$A=54 {cm^2}$