You add up all the sides
if you're doing area you multiply height by width
if you truly don't know than you shouldn't be alive right now, or you are in the lower grades of elementary school, but all you do is add all of the sides together (if they are labeled) to find the perimeter of a rectangle or anything for that matter except any 2 demential shape with 1 or more curved sides.
In practice, with a measuring instrument such as a measuring tape. If you know the lengths of two adjacent sides, the perimeter is twice the sum of the lengths of the two adjacent sides.
2*length + 2*width
There is no reason for the perimeter of a triangle to have any relation to the perimeter of an unrelated rectangle!
the perimeter of a rectangle is calculated by : 2*(l+b)
The length of a rectangle is twice its width. If the perimeter of the rectangle is , find its area.
find the perimeter and area of a rectangle that is 15cm long and 5cm wide
the length of a rectangle is 5 more then the width. Find the perimeter and the area of the rectangle
To find the perimeter you add and to find the area we multiply.
Square is a special case of a rectangle and the same formula may be used to find the perimeter
To find the perimeter of a rectangle you must calculate the lengths of each of the sides and add them all together.
The perimeter of any 2D shape is the sum of all of the individual sides. For example: the perimeter of a rectangle is = length of rectangle (top) + length of rectangle (bottom) + height of rectangle (Left) + height of rectangle (Right)
The perimeter of a rectangle is the sum of its 4 sides added together.
how do you find the area of a rectangle witha perimeter of 36 in You don't. You need more information For example a 1 x 17 rectangle has a perimeter of 36 and its area is 17. But a 2 x 16 rectangle also has a perimeter of 36 and its area is 32.