在△ABC中,∠A,∠B都是锐角,且sinA=1/2,cosB=（根号3）/2,则△ABC是（ ）三角形（要解释,）最好是有个图

在△ABC中,∠A,∠B都是锐角,且sinA=1/2,cosB=（根号3）/2,则△ABC是（ ）三角形（要解释,）最好是有个图
在△ABC中,∠A,∠B都是锐角,且sinA=1/2,cosB=（根号3）/2,则△ABC是（ ）三角形（要解释,）
最好是有个图

在△ABC中,∠A,∠B都是锐角,且sinA=1/2,cosB=（根号3）/2,则△ABC是（ ）三角形（要解释,）最好是有个图
A=30,B=30,C=120
A=120,B=30,C=30
都是钝角三角形
画个三角形,设边长就出来了

等腰三角形
因为sinA=1/2，所以角A=30°
因为cosB=（根号3）/2，所以角B=30°

sinA=1/2 30度 cosB=（根号3）/2 30度 那角C就180-30-30=120 是钝角三角形也是等腰三角形

角A是30°，角B是30°，所以此三角形为钝角等腰三角形

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Need Help? Showtimes + Tickets Share Black Orpheus Opened June 12, 1959 | Runtime:2 hr. 0 min. PG Death follows a streetcar conductor (Breno Mello) and country girl (Marpessa Dawn) during carnival in Rio de Janeiro. Cast: Breno Mello, Marpessa Dawn, Lea Garcia,Rolex store, Lourdes de Oliveira Director: Marcel Camus Genres: TragedyRomantic FantasyFantasyRomance Black Orpheus Featured Trailers + Video Clips Trailer: Black Orpheus (2:45) Black Orpheus Critic Reviews Avg. Critic Score81 out of 100 | Universal acclaim
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90 Village Voice | Michael Atkinson
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90 The New York Times | Bosley Crowther

A film that art-house audiences in 1959 loved madly. And who can blame them? A...
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It really is not the two lovers that are the focus of interest in this film;...
Pic is somewhat cerebral, being mainly helped by the fresh playing of the...
88 Chicago Tribune | Michael Wilmington
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