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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.
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∙ 13y ago
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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
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 in a polygon with 14 sides?
Using the formula: 0.5*(142-42) = 77 diagonals
How many diagonals does a regular 12-gon have?
Using the formula: 0.5*(n2-3n) it has 54 diagonals
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
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
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 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 in a polygon with 14 sides?
Using the formula: 0.5*(142-42) = 77 diagonals
How many diagonals does a regular 12-gon have?
Using the formula: 0.5*(n2-3n) it has 54 diagonals
