Ответ:
sinA=CH/AC
CH=sinA*AC=0,8*20=16
AH=√AC²-CH²=√400-256=√144=12
AH+HB=AB
AH=HB
AB=2*AH=2*12=24
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Ответ:
sinA=CH/AC
CH=sinA*AC=0,8*20=16
AH=√AC²-CH²=√400-256=√144=12
AH+HB=AB
AH=HB
AB=2*AH=2*12=24