[{"question":"Trojuholn\u00edk m\u00e1 obvod 34,2 m a strany dlh\u00e9 13 m a 8,9 m. Vypo\u010d\u00edtajte tretiu stranu.","answers":["12,3","13,1","12,1","13,2"],"correct":"12,3","order":"1"},{"question":"Vypo\u010d\u00edtajte obsah pravouhl\u00e9ho trojuholn\u00edka s odvesnami 4,2 cm a 23 mm.","answers":["9,66","19,32","48,3","4,83"],"correct":"4,83","order":"2"},{"question":"Obvod rovnoramenn\u00e9ho trojuholn\u00edka je 17,7 dm a z\u00e1klad\u0148a m\u00e1 ve\u013ekos\u0165 65 cm. Ak\u00e9 dlh\u00e9 s\u00fa jeho ramen\u00e1?","answers":["11,2","5,6","23,65","6,5"],"correct":"5,6","order":"3"},{"question":"Z\u00e1klad\u0148a rovnoramenn\u00e9ho trojuholn\u00edka je 20 cm a obsah 240 cm2. Vypo\u010d\u00edtajte obvod tohto trojuholn\u00edka.","answers":["82","80","72","75"],"correct":"72","order":"4"},{"question":"Trojuholn\u00edk m\u00e1 obvod 35 cm. Prv\u00e1 strana je 4-kr\u00e1t v\u00e4\u010d\u0161ia ne\u017e druh\u00e1 a z\u00e1rove\u0148 o 1 cm v\u00e4\u010d\u0161ia ne\u017e tretia strana. Ur\u010dte ve\u013ekos\u0165 str\u00e1n trojuholn\u00edka.","answers":["16, 4, 15","14, 6, 15","16, 5, 15","14, 5, 16"],"correct":"16, 4, 15","order":"5"},{"question":"Koso\u0161tvorec je rozdelen\u00fd uhloprie\u010dkami na 4 trojuholn\u00edky. D\u013a\u017eky uhloprie\u010dok s\u00fa 9 cm a 7 cm. Vypo\u010d\u00edtajte obsah jedn\u00e9ho trojuholn\u00edka.","answers":["7,8","15,75","7,875","31,5"],"correct":"7,875","order":"6"},{"question":"Vypo\u010d\u00edtajte obsah v\u0161eobecn\u00e9ho trojuholn\u00edka so stranami 10, 8, 6.","answers":["576","24","311","22"],"correct":"24","order":"7"},{"question":"Je dan\u00fd rovnostrann\u00fd trojuholn\u00edk so stranou dlhou 5,2 cm. Vypo\u010d\u00edtajte jeho obvod a obsah.(zaokr\u00fahli na 2 des.m.)","answers":["15,6; 17,1","15,1; 17,6","15,7; 16,1","11,7; 16,5"],"correct":"15,6; 17,1","order":"8"},{"question":"Vypo\u010d\u00edtajte polomer kru\u017enice op\u00edsanej trojuholn\u00edku, ktor\u00fa m\u00e1 strany 10, 8, 6.","answers":["6","15","5","10"],"correct":"5","order":"9"},{"question":"Trojuholn\u00edk m\u00e1 obvod 35 cm. Prv\u00e1 strana je 4-kr\u00e1t v\u00e4\u010d\u0161ia ne\u017e druh\u00e1 a z\u00e1rove\u0148 o 1 cm v\u00e4\u010d\u0161ia ne\u017e tretia strana. Ur\u010dte obsah trojuholn\u00edka.(zaokr\u00fahli na 2 des.m.)","answers":["2657,81","45,27","52,84","51,55"],"correct":"51,55","order":"10"}]