Mathematics
Junior High
Resolved
請問這兩題怎麼算?謝謝
冊卷》半8-2
( ) 21.如右圖,△ABC中,分
別以4B、AC 為邊長畫出
正方形 ABFG 與正方形
ACDE,連接BE、CG相
交於H點,已知∠ACG =
34°,∠ABE=28°,則∠GAE = ?
(A)145°
(B) 148°
(C)152°
H
B
E
C
D
(D) 155°
( ) 22.如右圖,長方形ABCD中
,
AC 與BD 相交於O點,
DG⊥AC,P在BC上,且
PELBO,PFLCO,若
E
G
B
P
OD=5,OG=3,則PE+PF=?
(A) 3√3
(B) 4
(C)4~2
(D) 5
第二部分:計算題(每題6分,共12分)
1. 如右圖,梯形ABCD中,AD // BC,E
A
少"
4 D
D
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