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It is a 2D measurement because it is only going AROUND the shape. Not in it.

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Q: Why is perimeter a 2 d measurement?
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Related questions

How do you find out the measurement of the perimeter of a rectangle?

2*(base) + 2*(height) = perimeter


How do you find the perimeter of a semicircle with radius 7?

Perimeter = (pi*7)+14 = 35.99114858 or about 36 units of measurement Answer 2 (ylon2): Perimeter= 2*r+2*pi*r/2=r*(2+pi) = r*5.14=35.98 or about 36 units of measurement (ylon2 calkulated)


What is the difference between the perimeter of and the area of?

The perimeter is a measurement of the distance around the outline of a shape. The area is the measurement of all the space within the shape, and it is measured as (unit) 2


Is 56cm a perimeter or area?

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


Is perimeter and area the same?

No , perimeter is the measurement outside of the shape; the border. Area is the measurement of inside of the shape.


Do the interior angle of a pentagon have to be the same measurement of the perimeter?

The angles of a polygon are not directly related to the measurement of the perimeter. If you measure a perimeter of a pentagon in inches and then again in centimetres, the measurement number will change but the pentagon will remain the same.


What is the perimeter of a small square if the perimeter is 17?

Exactly as in the question its perimeter is 17 units of measurement


What is the formula for the perimeter of a semicircle?

If you are given the diameter 'D' of the circle: the full circumference is (pi times D) the perimeter of the semicircle is half this plus the diameter Therefore: Pi x D /2 + D


Is the radius the measurement of the perimeter of a circle?

No.


What is the outside measurement of a polygon?

The perimeter


What is area an perimeter?

Area is the amount of square units in a 2-D shape, and perimeter is the distance around a shape


What is the measurement for a pentagon?

The perimeter measurement of a pentagon is the sum of its 5 sides