Предмет: Математика, автор: emragasanov2

треугольник ABC равнобедренный
основанием AC
AB:AC=5:2
ПЕРИМЕТР=48 СМ
найти AB,BC,AC

Ответы

Автор ответа: iliailis69
0
АС=5х;АВ=ВС=2х :5х+2х+2х=48; 9х=48; х=48:9=5 1/3.АС=5×16/3=26 2/3;АВ=2×16/3=10 2/3,теперь проверяем:26 2/3+10 2/3+10 2/3=46 6/3=48,значит решение правильное
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