###### Asked in Math and ArithmeticAlgebraGeometry

Math and Arithmetic

Algebra

Geometry

# What does diagonal mean?

## Answer

###### Wiki User

###### June 03, 2015 10:08AM

A 45 degree angle offset from either 0 degrees or 90 degrees

In a polygon, a diagonal is a line segment connecting two nonadjacent vertices.

A diagonal is also a horseback riding term used in posting. Your diagonal is when you rise and fall while posting on either the outside or inside leg of the horse.

For example, this forward slash / is a diagonal line. While this lower-case letter l is a straight line.

## Related Questions

###### Asked in Geometry

### Does diagonal mean an angle cut?

###### Asked in Math and Arithmetic, Algebra, Geometry

### What is the diagonal of 11 square inches?

As no shape has been given for the area it is impossible to
given the length of the diagonal - the diagonal can be ANY length
greater than 0 (assuming you can define what diagonal means for the
shape).
If you are referring to a square with an area of 11 square
inches then:
Using Pythagoras:
diagonal² = side² + side² = 2 × side²
→ side² = diagonal² ÷ 2
area = side²
= diagonal² ÷ 2
→ diagonal² = 2 × area
→ diagonal = √(2 × area)
= √(2 × 11 sq in)
= √22 in
≈ 4.69 in
If you mean an 11 inch square, ie a square with 11 inches along
each side:
Use Pythagoras:
Diagonal² = √(2 × sidelength²)
→ diagonal = side_length × √2
→ diagonal = 11 in × √2 ≈ 15.6 in

###### Asked in Geometry

### What do diagnal mean?

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