题目

Find the missing sides and angles in the right triangle,where a is the side across from angle A,b across from B,and c across from the right angle.(Round your answers to 3 decimal places.)
a = 25,c = 46
b=?
A=?
B=?
A kite flier wondered how high her kite was flying.She used a protractor to measure an angle of 32° from level ground to the kite string.If she used a full 50 yard spool of string,how high,in feet,was the kite?Round your answer to 3 decimal places.(Disregard the string sag and the height of the string reel above the ground.)
（ ） ft

提问时间：2020-11-08

答案

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)