in triangle ABC,AB=AC=2.WHICH of the following could be the area of triangle ABC?Indicate all possible areas.(多选题)

问题描述:

in triangle ABC,AB=AC=2.WHICH of the following could be the area of triangle ABC?Indicate all possible areas.(多选题)
A、0.5 ; B、1 ; C、1.5;D、2; E、2.5 ;F、3
(不要死算哈)

S=1/2*AB*AC*sinA=2sinA
sinA在0-1之间,所以面积在0-2之间
答案ABCD