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  【Findthemissingsidesandanglesintherighttriangle,whereaisthesideacrossfromangleA,bacrossfromB,andcacrossfromtherightangle.(Roundyouranswersto3decimalplaces.)a=25,c=46b=?A=?B=?Akiteflierwonderedhowhighherkitew】

  Findthemissingsidesandanglesintherighttriangle,whereaisthesideacrossfromangleA,bacrossfromB,andcacrossfromtherightangle.(Roundyouranswersto3decimalplaces.)

  a=25,c=46

  b=?

  A=?

  B=?

  Akiteflierwonderedhowhighherkitewasflying.Sheusedaprotractortomeasureanangleof32°fromlevelgroundtothekitestring.Ifsheusedafull50yardspoolofstring,howhigh,infeet,wasthekite?Roundyouranswerto3decimalplaces.(Disregardthestringsagandtheheightofthestringreelabovetheground.)

  ()ft

1回答
2020-11-08 21:57
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杜文广

  1、已知直角三角形两边求其它边和角

  b=38.613;

  A=32.921°;B=57.079°

  2、已知风筝线长和飞行角度,求飞行高度

  线长=50yard(码)=150feet(英尺),与地面夹角=32°

  风筝高度=150*sin32°=79.488(feet)

2020-11-08 22:00:10

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