問題詳情
20. 梯形ABCD中， 
， 
，EF為兩腰中點連線段，則梯形AEFD面積：梯形ABCD面積的比值為多少？
(A) 
(B) 
(C) 
(D) 
參考答案
答案：D
難度：計算中-1
書單：沒有書單，新增
內容推薦
- 如下圖(十五)，梯形ABCD中， ， ，其中 。小書自B點剪出 ，使得 將梯形分成兩塊面積相等的圖形。若N在 上，則 ＝﹖ (A) (B) (C) (D)
- 如下圖(十四)，在直角坐標平面上，ABCD為平行四邊形，已知 A(2 ,5)，B(3,－6)，C(8 , －6)，D(a ,b)，則a＋b為何？ (A)－ (B) (C)10 (
- 如下圖(十三)，等腰梯形ABCD中， ， ， ，則此梯形的對角線長為？ (A) (B) (C) (D) 18
- 如下圖(十二)，ABCD為平行四邊形。若 ，且∠D＝115°，∠ABE＝42°，則∠FGE＝ ? (A)65° (B)67° (C)73° (D)78°
- 如下圖(十一)，̅ ，且△ABC 面積為 平方公分，△AC D面積為 平方公分，△A DE面積為 平方公分，則△ABE 的面積為多少平方公分？ (A) (B) 15
- 如下圖(十)，在∠ABC 與∠DEF 中，̅ ，若∠DEF 比∠ABC 的 倍少 20°，則∠ABC＝？ (A) 50° (B) 55° (C) 60° (D) 65°
- 如下圖(九)，矩形ABCD中，已知 公分，且兩條對角線的夾角是120°，則對角線為幾公分? (A) (B) 10√ (C) (D) 20√3
- △ABC中， ＝√3－1， ＝√2－1，則下列何者正確？(A)∠A＞∠B＞∠C (B)∠A＜∠B＜∠C (C)∠C ＞∠A＞∠B (D)∠B＞∠A＞∠C
- 如上圖(八)，△ABC 中，∠ACB 的角平分線交 於 D，̅ ，如果∠CDE＝35°，∠B＝40°，則下列選項何者錯誤？ (A)∠ACB＝70° (B)∠ADC＝70° (C) △CDE為
- 如下圖(七)，T、S 分別為截線，若∠1＝∠2，且∠3＝（7x＋26）°，∠4＝（8x－11）°，則∠5＝？ (A)103°(B) 104°(C) 105°(D) 106°
內容推薦
- 欣潔用四根木條釘製一個平行四邊形ABCD後，將木條 依箭頭所示方向推動，而成一矩形A'B'C'D'，如下圖(十六)所示，下列何者對於此兩個四邊形之比較是
- 如下圖(十七)，△PQR中，A、B兩點在 上，且 ，C、D兩點分別在 上。若ABCD為菱形，則下列敘述，何者不一定是對的？ (A) (B) (C) ∠P= (D)∠PRQ＝
- Emily __________ by a snake and then Phoebe __________ her to the hospital right away.(A) bite； s
- Jessica: Who __________ the mice? Kelly: The mice __________ by Tiffany.(A) caught； was caught (B
- Celine didn’t __________ the doghouse. The doghouse __________ by her father.(A) build； was built
- You shouldn’t laugh at Barry. He is __________ so he means what he says.(A) attractive (B) intere
- Let’s work together to __________ the problem, __________?(A) choose； will you (B) solve； shall w
- Mamie is wondering __________ she could eat all the food on the table or not.(A) what (B) that (C
- I noticed Ann Claire __________ to Paul during the class all the time. It __________ that they ar
- Rudy made __________ last year and he has __________ followers on Instagram (IG).(A) two million
- Everyone has many good friends at school __________ William, so he is quite __________.(A) excep
- David __________ to his parents and told them that he __________ smoking. However, he is still b
- Jammy decides __________ harder. Winnie is wondering __________ she can make it or not.(A) to st
- Blythe is __________ busy having some meetings around Taiwan these days __________ she can’t giv
- May I ask __________ to the party? If she hasn’t decided yet, maybe I can ask her to go there to
- Lily is wondering whether Hebe to her birthday party next Saturday, but whether she or not,Lily
- 【題組】(A) I’m afraid I can’t agree with you.(B) I don't know how to take care of her.(C) Don&
- 【題組】(A) Leopard cats cannot be kept as pets in Thailand(B) Leopard cats can live up to 13 years
- 【題組】(A) if she is released next month(B) if she belongs to someone else(C) if she's the cat
- 【題組】What does “pay you back” mean in the article?(A) Attack other animals.(B) Do its business qu
- 【題組】What does “do their business” mean in the article?(A) Poop. (B) Walk in circles. (C) Smell a
- 【題組】Sharon:Now I understand why my dog acts like that. Thank you! But I have one more question, “
- 【題組】What does come up with mean in the reading?(A) run into (B) think of (C) give up (D) go acro
- 【題組】Which of the following is an example of using an emoji?(A) Drawing a picture that looks like
- 【題組】Which of the following is an example of a new word that comes from an old one but looks a li