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) = 150 feet(英尺),与地面夹角 = 32°
风筝高度 = 150*sin32° = 79.488 (feet)
Find the missing sides and angles in the right triangle,wher
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