摘要: ´ 2 1 8 9 2 3
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Given in the △ABC ,a,b,c are three sides of the triangle,and
,then ∠A is
A.acute angle B.right angle
|
Given in the△ABC,a,b,c are three sides of the triangle,and
=
+
,then∠A is( )
(英汉词典acute angle:锐角;obtuse angle:钝角)
| 3 |
| a |
| 2 |
| b |
| 1 |
| c |
(英汉词典acute angle:锐角;obtuse angle:钝角)
| A、acute angle |
| B、right angle |
| C、obtues angle |
| D、acute angle or obtues angle |