[{"question":"Ak\u00fd vzorec plat\u00ed pre v\u00fdpo\u010det obvodu \u013eubovo\u013en\u00e9ho trojuholn\u00edka?","answers":["S = a +b+c","O = 2a + c","O = a.b\/2","O = a +b+c"],"correct":"O = a +b+c","order":"1"},{"question":"Vypo\u010d\u00edtaj obvod trojuholn\u00edka so stranami dlh\u00fdmi 5 cm 1,2 dm a 0,09m.","answers":["7,1 dm","17,9 cm","26 cm","15,2 cm"],"correct":"26 cm","order":"2"},{"question":"Vypo\u010d\u00edtaj obsah trojuholn\u00edka, ktor\u00e9ho strana a = 7,5 a v\u00fd\u0161ka va = 4,3.","answers":["161,25","16,125","1,6125","32,25"],"correct":"16,125","order":"3"},{"question":"Vypo\u010d\u00edtaj obsah trojuholn\u00edka, ktor\u00e9ho strana b = 5 a v\u00fd\u0161ka vb = 2.","answers":["5","10","20","15"],"correct":"5","order":"4"},{"question":"Vypo\u010d\u00edtaj obsah trojuholn\u00edka, ktor\u00e9ho strana c=4,5 a v\u00fd\u0161ka vc=2,5.","answers":["11,25","5,625","22,5","56,25"],"correct":"5,625","order":"5"},{"question":"Vypo\u010d\u00edtaj obsah pravouhl\u00e9ho trojuholn\u00edka s odvesnami dlh\u00fdmi 7 cm a 9 cm.","answers":["314,5","31,5","126","63"],"correct":"31,5","order":"6"},{"question":"Ak\u00e1 dlh\u00e1 je strana trojuholn\u00edka, ak jeho obsah je 28 dm2<\/sup> a jeho v\u00fd\u0161ka je 8 dm.","answers":["9","56","8","7"],"correct":"7","order":"7"},{"question":"Ak\u00e1 dlh\u00e1 je odvesna pravouhl\u00e9ho trojuholn\u00edka, ak jeho obsah je 60,5 cm2<\/sup> a jeho druh\u00e1 odvesna je dlh\u00e1 1,1 dm.","answers":["11cm","0,11dm","121 cm","6,05"],"correct":"11cm","order":"8"},{"question":"Vypo\u010d\u00edtaj obvod a obsah pravouhl\u00e9ho trojuholn\u00edka, ktor\u00e9ho strany maj\u00fa ve\u013ekos\u0165 3 cm, 4 cm a 5 cm.","answers":["12 cm2<\/sup> a 6cm","12 cm a 6 cm2<\/sup>","12 cm a 12 cm2<\/sup>","6 cm a 6 cm2<\/sup>"],"correct":"12 cm a 6 cm2<\/sup>","order":"9"},{"question":"Vypo\u010d\u00edtaj obvod a obsah trojuholn\u00edka, ktor\u00e9ho stranjy maj\u00fa ve\u013ekos\u0165 a=5 cm, b=6 cm, c=6 cm a vc=4 cm.","answers":["12 cm2<\/sup> a 12 cm","17 cm2<\/sup> a 17 cm","12 cm2<\/sup> a 17 cm","17 cm2<\/sup> a 12 cm"],"correct":"12 cm2<\/sup> a 17 cm","order":"10"}]