1. Diagonal of an isosceles trapezoid if you know sides (leg and bases)
, 
- bases
- leg (lateral side)
- diagonal
Find the diagonal of an isosceles trapezoid if given all sides ( ) :
) :
2. Diagonal of an isosceles trapezoid using the law of cosines
, - bases
- leg (lateral side)
- diagonal
, 
- angles at the base
Calculate the diagonal of a trapezoid if given base, lateral side and angle between them ( ) :
) :
3. Diagonal of an isosceles trapezoid if you know height, midsegment, area of a trapezoid and angle between the diagonals
, - bases
- diagonal
, - angles between the diagonals
- height
- midsegment
- area
Calculate the diagonal of a trapezoid if given height, midsegment, area of a trapezoid and angle between the diagonals ( ) :
) :
* It is true in this case:
4. Diagonal of an isosceles trapezoid if you know height, sides and angle at the base
- lower base
- upper base
- leg (lateral side)
- diagonal
- angle at the base
- height
Calculate the diagonal of a trapezoid if given height, sides and angle at the base ( ) :
) :
