# How to Calculate Diagonal Length and Width?

Using geometry allows you to find the length of the diagonals in a rectangle or square without measuring. A diagonal reaches from one corner of the shape to the corner farthest from it. A rectangle... Read More »
http://www.ehow.com/how_8142384_calculate-diagonal-length-width.html

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## How to Calculate the Width of a Rectangle Using the Diagonal?

To calculate the width of a rectangle using the diagonal you need to use the Pythagorean Theorem. The diagonal will cut the rectangle into two triangles. The Pythagorean Theorem is the formula "A" ... Read More »
http://www.ehow.com/how_6821869_calculate-width-rectangle-using-diagonal.html

## If the width of a photograph is 4 cm more than three tenths of the length and if the width is 13Cm find the length?

Width 13, minus 4 is 9 which is 3/10 so length is 90/3 ie 30cm.

## The width of a photograph is 4 cm more than three tenths of the length. If the width is 13 cm what is the length?

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