Mathematics
Senior High
Resolved
上辺をだしたいのですが、答えと合いません。どこが間違えていますか?
× 5E× gintS XR×長2
5
2
x/5Exsinls- に良、
5
135
4の
2
0
15
45。
30
3に
t
の AD/BCの台形 ABCDで, AB=5, BC=8, BD=7, ZA=120° のとき, 台形 ABCDの面積S
U
25 +t-¥?
COS120°-
(o
2-24 ×702L
ジ1てに
>と
512=バー24
4 STX-2チ:0
S日+』75+76
2
5
sほ+3順
C
8
2
S-24f 0
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