100分求英文翻譯,求手工
100分求英文翻譯,求手工
A helium balloon is rising vertically above point A that is located on level ground directly
underneath the balloon. As it rises for a time period of 1 minute, its angle of elevation from a
point B on the ground that is located 180 meters from point A changes from 13 degrees to 65
degrees. How far does the balloon rise during this period of time? Approximate your answer to
the nearest tenth of a meter.
A helium balloon is rising vertically above point A that is located on level ground directly
underneath the balloon. As it rises for a time period of 1 minute, its angle of elevation from a
point B on the ground that is located 180 meters from point A changes from 13 degrees to 65
degrees. How far does the balloon rise during this period of time? Approximate your answer to
the nearest tenth of a meter.
英語人氣：209 ℃時間：2019-10-08 04:49:27
優(yōu)質(zhì)解答
一個氦氣球在位于其正上方水平面上的A點上空垂直上升.當它上升了1分鐘之后,地面上距離A點180米的B點到它的仰角由13度增加到了65度.問這段時間內(nèi)氣球上升了多少距離?答案精確到0.1米 再給你拆開解釋下:一個氣球垂直上...
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