想請問這題怎麼解？

DB 14. We were so sure that Jerry well on the difficult job. His past experience in other work showed he was the right guy for it. So when he failed, no one believed it. (A) had done (B) did (C) has done (D) would do tant thing when he shons for jeans. He cares even

如何知道是AAS全等性質

19. 如右圖,正方形ABCD中的A點在直線之上,分別自B、D兩點向工作垂線, 垂足為E、F兩點,若BE=5,DF=4,下列敘述何者錯誤? (A) EF =9 (B)△ABE=△DAF是依據AAS全等性質 (C)正方形ABCD的面積=41 (D) EC = √97 25+16 = 41 D L E A F

8、9題求解

a L a=20 8.如右圖,梯形ABCD中,∠C=∠D=90°,AD=16, BC=9。若∠BAD、 ∠ABC的角平分線交於P點,且P點在CD上,則AP=20 20+2X2180 0+x=9+0 180°-90° = 90° 神华 +X* 0 9.如右圖,AB和線段外一點P,若AB=11,PA=5,PB=9,C點 在AB上,且PA=PC,則△PAC面積:△PCB面積=65.56 ==3x 11xx =25X Be P 161 2. 如右 A 16 D AAE 3. 如 A C B 若

不懂（A)哪裡不對🙏

13. The movie starts at (A) half past ten p.m. (B) a quarter to ten (C) five sixty (D) thirty Hurry up, or we will be late.

A為何不是氫鍵呀？ 它不是接在有F N O的共價鍵上嗎？

) 3. 下列物質中,哪些具有分子間氫鍵? = (A) H3C-C-OCH3(B) CH3OH (C) KOH O

急問🙇🏻‍♀️這三題

XLEARBE 4/BCDE ∴ABCE≅ △CBD AA 故∠ECB=∠DBC(對應請看鸲。" *3. 如圖,△ABC中,∠ABC=90°,AB=4,BC = 3, 今以AC為邊長向外作正方形ACDE,連接BD、BE, 則BD=158,BE=N65 4.如圖,△ADE、△ABC均為正三角形。 (A)說明∠BAD=∠CAE。 (1)/(2)說明△ADB△AEC。 (3)若∠AEC=100°,求∠BDE的度數口DAEC中 4 OVA D B BO RECISAS) Nt.c (SAS) 3° E E

請問甲畫的圖是什麼意思

(B)∠ABP=<CBP=1 (C)DP=PE 2<ABC (D) △BDP≅ BEPASA全等生 (2)4. 下列各作圖方式,何者無法平分 甲 乙 B. (A)甲 D C B (B) Z 丙 OF - ) 5. 如右圖,△ABC中,ZB=50 以逆時針方向沿著△ABC的二 多少度?

請問這兩題該怎麼算？>°°<

1 D 4.空間中有兩條歪斜線L與S,直線L上有三點A、B、C,且AB=BC。直線S上有三點D、E、F,其中AD、BE、CF 皆垂直L。已知AD=10、BE=13、CF=24,則歪斜線L與S的距離為 。(化為最簡分數) 5.令E:x+z=2為坐標空間中過三點A(2,1,0)、B(0,1,2)、C(-2,1,4)的平面。另有一點P在平面z = 1上且其 於E之投影點與A、B、C三點等距離。則點P與平面E的距離為 。(化為最簡根式)

想請問一下這一題 為什麼不能選D

CR (A) are being 7. A typhoon destroyed the A) were wait (C) are to be 4) is being idge to the village; all the residents could (B) were waiting (C) was wait do) (D) was waiting thing that she does every day for help. the house tidy

求解🙏 謝謝

九 九6 R abroad. 最終完成 (A) so (B) until (C) although 11. It's difficult to work with Hank. He can forget things I (B) am telling (A) have told (C) will tell (D) because him more than 10 times. (D) was told