How to find the perimeter of a parallelogram - Math

The perimeter of a parallelogram is very easy to find. You just need to add up all the sides. However, you need to notice that the sides "across" from each other are equal on parallelograms. So, your figure could be redrawn:

The perimeter of your figure is therefore:

A parallelogram has four sides and its opposite sides are equal in length. Therefore, if it has one side length of, it also has another side length of of . Since we know one of its side lenghts is , then the remaining side is . We can add all 4 side lengths to calculate the perimeter.

The perimeter of a parallelogram is the sum of all four sides or the sum of two times each side length. The side lengths are and so the perimeter is .

Find the perimeter of the given parallelogram:

The perimeter of any shape can be found by adding up the lentghs of its sides.

In this case, we have four sides. 2 that are 16 miles long, and 2 that are 144 miles long.

Find perimeter as follows:

Making our answer 320 miles

The perimeter of the parallelogram is the sum of the four side lengths - here, that formula becomes

.

Note that the height is irrelevant to the answer.

To find the perimeter of a parallelogram, add the lengths of the sides. Opposite sides of a parallelogram are equivalent.

The perimeter of a parallelogram is found by adding up all four sides.

Since there are two pairs of side with equal lengths, two sides must have a length of .

So the perimeter would be

or .

To find the value of the other side length, you would divide the remaining perimeter not include in the other sides by .

So .

That means the other side length would be .

The perimeter of a parallelogram is two times the two side lengths and add them together.

Therefore, this particular problem becomes as follows.

and

so

.

To find the perimeter of the parallelogram apply the formula: . However, to find the solution with the correct unit, convert and . We can convert feet into inches because .

Thus, the solution is:

To solve this problem, apply the formula: .

Since, the side length is equal to , the solution is:

In order to find the perimeter of this parallelogram, apply the formula:
.

The solution is:

The side length of this parallelogram is foot, which is equivalent to inches because .

Thus, the base must be .

Then, apply the formula

To find the perimeter of this parallelogram, first find the length of the side: .

Since, , the side must be .

Then apply the formula:

Since the side is the length of the base, the side is equal to .

Then apply the formula .

The solution is:

To solve this problem, apply the formula: .

Thus, the solution is:

To solve this problem, apply the formula .

Since the length of the side is not provided in the figure, apply the formula , where , and the side of the parallelogram.

The solution is:

Thus,

To solve this problem, first find the . Then to find the length of the base:

Then apply the formula:

.

If all of the angles in triangle ABD are equal and line BD divides the parallelogram, then all angles in triangle BDC must be equal as well.

We now have two equilateral triangles, so all sides of the triangles will be equal.

All sides therefore equal 5.

5+5+5+5 = 20

The triangle on the left side of the figure has a and a angle. Since all of the angles of a triangle must add up to , we can find the angle measure of the third angle:

Our third angle is and we have a triangle.

A triangle has sides that are in the corresponding ratio of . In this case, the side opposite our angle is , so

We also now know that

Now we know all of our missing side lengths. The right and left side of the parallelogram will each be . The bottom and top will each be . Let's combine them to find the perimeter:

The formula for the perimeter of a trapezoid is:

,

where is the length of the base and is the length of the edge.

Opposite sides of a parallelogram have the same length. Therefore, both edges are and both bases are .

Plugging in our values, we get: