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The perimeter is a characteristic of a 2-dimensional object. A 12 by 13 by 5 sounds like a 3-dimensional object which would not have a perimeter.

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What is the perimeter of a triangle that's by 13 by 12 by 5 inches?

The perimeter of the triangle is: 13+12+5 = 30 inches


The legs of a triangle are 5 and 12 What is the perimeter?

With sides of 5 and 12, you can make a triangle with any perimeter you want between 24 and 34. If you call them "legs" because they are the sides of a right triangle, then the hypotenuse is 13, and the perimeter is 30.


What is the perimeter and area of a rectangle with 5 and 12?

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What is the perimeter of 12cm and 5cm?

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The sides of a triangle are in a ratio 5 12 13 What is the length of each side if the perimeter of the triangle is 15in?

2.5ins, 6ins and 6.5ins respectively.The perimeter of a 5-12-13 triangle would be 30 in.The shortest side is 5/30 = 1/6 of the perimeter, the middle side is 12/30 = 2/5 and the biggest is 13/30.So, for the triangle with perimeter 15 inches, the smallest side is 1/6*15 = 2.5 inches.The middle side is 2/5*15 = 6 inches and the biggest side is 13/30*15 = 6.5 inches.


Two Pythagoras triangles with area equal to perimeter?

5, 12, 13 and 6, 8, 10


What is a Perimeter of your bedroom?

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What is the perimeter of 12 feet by 13 feet?

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What is the perimeter of a rectangle if length is 12 inches and width is 5 inches?

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Do these rectangles the same perimeter - 12 meters x 4 meters and 13 meters x 3?

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What is the perimeter of a parallelogram with two adjoining sides measuring 12 feet and 5 feet?

Since a parallelogram has opposite sides parallel and EQUAL, perimeter is 12+12+5+5 = 34 feet


What is 13 minus 12 plus 5?

13 - 12 + 5 = 6