1) AB=5 BC=4 AC=pod kornem 25-16=9= AC=3
tgB=AC/BC=3/4 tgB=3/4
2) AB=10 BC=6 AC=POD KORNEM 100-36=64 AC=8
tgA=BC/AC=6/8=3/4 tgA=3/4
3) AB=15 BC=12 AC=POD KORNEM=225-144=81=9
cosA=AC/AB=9/15=3/5 cosA=3/5
4) AB=5P.K.10 BC=15 AC=P.K. 250-225=25=5
tgB=5/15=1/3
5) AC=POD KORNEM 9*149-900=441=21
tgB=21/30= 7/10
6) AB=2 BC=P.K.3 AC=4-3=1 AC=1
cosA=AC/AB=1/4