[{"question":"Vypo\u010d\u00edtajte v cm2 obsahy obdl\u017en\u00edkov s rozmermi: a = 6 cm, b = 9 cm","answers":["20 cm2","48 cm2","54 cm2","45 cm2"],"correct":"54 cm2","order":"1"},{"question":"a = 80 cm, b = 32 cm","answers":["2530 cm2","2560 cm2","2520 cm2","2650 cm2"],"correct":"2560 cm2","order":"2"},{"question":"a = 40 cm, b = 56 cm","answers":["192 cm2","224 cm2","3420 cm2","2240 cm2"],"correct":"2240 cm2","order":"3"},{"question":"a = 25 cm, b = 1m","answers":["2500 cm2","250 cm2","100 cm2","125 cm2"],"correct":"2500 cm2","order":"4"},{"question":"a = 93 cm, b = 45 cm","answers":["5083 cm2","4185 cm2","4085 cm2","4175 cm2"],"correct":"4185 cm2","order":"5"},{"question":"a = 6 cm, b = 90 mm","answers":["5400 cm2","540 cm2","450 cm2","54 cm2"],"correct":"54 cm2","order":"6"},{"question":"a = 3 dm, b = 150 cm","answers":["450 cm2","4500 cm2","45 000 cm2","45 cm2"],"correct":"4500 cm2","order":"7"},{"question":"a = 6 m, b = 80 mm","answers":["480 cm2","48 000 cm2","4800 cm2","48 cn2"],"correct":"4800 cm2","order":"8"},{"question":"a = 23 dm, b = 15 cm","answers":["3400 cm2","345 cm2","34 000 cm2","3450 cm2"],"correct":"3450 cm2","order":"9"},{"question":"a = 2 dm, b = 30 mm","answers":["60 cm2","6 cm2","600 cm2","6000 cm2"],"correct":"60 cm2","order":"10"}]