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This all depends on the shape you are given! Let's work on each part of the terms:

  1. Perimeter - You add up all the sides of the shapes for some closed unrounded shape. If the shapes are rounded or ovalish, then you need to use this form to work out the problem: C = 2πr or apply Euler's formula to work out the circumference.
  2. Area - For some shapes with closed straight edges, you multiply the sides of the shapes. Though, for other shapes, like pentagon, you need to multiply the length of the apothem by the side of the shape. If you work on the ellipse or ovalish or round shapes, like circle, then you need to use some of these general forms:
  • 2π/√(4AC - B²) coming from Ax² + Bxy + C² = 1. This is the area of the ellipse.
  • A = πr², the area of the circle!
  • Other formulas for shapes with "curly" edges are unknown. The only way to work out the area is to apply integration in calculus.
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Q: How do you work out the perimeter and the area?
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How do you work out perimeter and area?

It is different for each shape. A perimeter is the distance around an object and the area is the square units it takes up.


How do you do perimeter and area of L?

Area: Find some of the lengths, then cut the L in half and work it out from there. Perimeter: Add all the lengths together.


How do you work out area in cm2 from perimeter?

If the sides are in cm, then you would multiply the length of the shape by the width, which equals area. And area is in the unit of the sides but squared. So in this example it would be cm2. ========================================= The answer to the question is: You can't. The perimeter doesn't tell you what the area is. You can have two different drawings with the same perimeter and different areas, or with the same area and different perimeters. Even if they're both triangles, or both rectangles, etc. You can't take perimeter and 'work out' area from it.


Is carpeting a floor a area are a perimeter?

It is area, not perimeter!


Area of rhombus if area and perimeter is given and if you have to find altitude?

Perimeter = 4*Side so that Side = Perimeter/4 Area of a rhombus = Side * Altitude so Altitude = Area/Side = Area/(Perimeter/4) = 4*Area/Perimeter


Are area and perimeter dimensions?

area 63 and perimeter is 32


How do l work out the area of a the perimeter of a triangle?

add up the length of all the sides


What is the area and the perimeter of 11Cm by 4Cm?

Area : 44cm² Perimeter : 30cm


In which jobs we use perimeter and area?

In which jobs we use perimeter and area?


What is the area of a rectangle that is a perimeter of 30?

It can be 56.25 or anything less, but not more. You can't tell the area from the perimeter, and you can't tell the perimeter from the area. -- if each side is 7.5, the perimeter is 30, and the area is 56.25 -- if it's (5 by 10), the perimeter is still 30, and the area is 50 -- if it's (4 by 11), the perimeter is still 30, and the area is 44 -- if it's (3 by 12), the perimeter is still 30, and the area is 36 -- if it's (2 by 13), the perimeter is still 30, and the area is 26 -- if it's (1 by 14), the perimeter is still 30, and the area is 14


How do you find the surface area of a pentagonal prism?

surface area prism = 2 × area end + total area side = 2 × area end + perimeter end × length of prism The information given to you will allow you to work out the area of one pentagonal end, and the perimeter of the pentagonal end.


Is 56cm a perimeter or area?

It must be a perimeter. An area measurement would a square measurement like 56cm². ■