answersLogoWhite

0


Best Answer

Pythagorean Theorem: a2+b2=c2. So if the length is 4cm and the width is 3cm:

a2+b2=c2

(3)2+(4)2=(5)2

9+16=25

25=25

Therefore, the diagonal would be 5cm.

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is formula for finding diagonals?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

How many diagonals are in a 14 sided polygon?

The formula for finding the amount of diagonals in a polygon is n(n-3)/2. So 14(14-3)/2 = 77 Diagonals


What is the formula to find the diagonal of trapezoid?

The formula for finding the diagonals of any polygon is: 0.5*(n2-3n) where n = the number of sides. A trapezoid has 4 sides so: 0.5*(16-12) = 2 diagonals


What are the two ways of finding the number of sides of a polygon which has 189 diagonals?

By using the polygon diagonal formula or the quadratic equation formula in which in both formulae they work out that the polygon in question has 21 sides.


How many diagonals are in a 35 side polygon?

There are 560 diagonals by using the diagonal formula


How many diagonals does a 20 sided polygon have?

It has 170 diagonals by using the diagonal formula


How is finding the area of a rhombus similar to finding the area of a kite?

Because in both cases their diagonals cross at right angles So their areas are: 0.5*product of diagonals


How many diagonals does a 44 sided polygon has?

It has 40 diagonals.Improved Answer:-Using the formula for diagonals of a polygon: 0.5*(442-132) = 902 diagonals


What is the formula for the number of diagonals in a hexagon?

n side polygon has n(n-3)/2 diagonals therefore a hexagon has 9 diagonals


What polygon is involved with 10 diagonals?

None because it does not comply with the formula 0.5*(n2-3n) = diagonals


How many diagonals in 18-gon?

Using the diagonal formula: 0.5*(182-54) = 135 diagonals


How many diagonals does a regular 12-gon have?

Using the formula: 0.5*(n2-3n) it has 54 diagonals


How many diagonals in a polygon with 14 sides?

Using the formula: 0.5*(142-42) = 77 diagonals