Відповідь:
DA = 78; DC = 39*
Покрокове пояснення:
DA = DB/sin∠DAB
DA = 39/sin30° = 39/(1/2) = 78
DC = DB/sin∠DCB
DC = 39/sin45° = 39/(1/) = 39*
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Answers & Comments
Відповідь:
DA = 78; DC = 39*
Покрокове пояснення:
DA = DB/sin∠DAB
DA = 39/sin30° = 39/(1/2) = 78
DC = DB/sin∠DCB
DC = 39/sin45° = 39/(1/
) = 39*