問題詳情
7.如下圖，兩直線相交於一點，且∠2＝(7x－13)°，∠1＝(18x＋43)°，則∠3是多少度？
(A) 151°
(B) 101°
(C) 81°
(D) 71°
參考答案
答案：A
難度：計算中-1
書單：沒有書單，新增
內容推薦
- 若等差數列第n項an＝－5n＋42，則此等差數列的公差為何？(A) 5 (B) －5 (C) 42 (D) －42
- 設一等差數列共有9項，若首、末兩項的和為60，則其餘的7項的和為多少？(A) 420(B) 360(C) 240(D) 210
- 一等差級數a1＋a2＋a3＋a4＋a5＋a6＋a7＋a8＋a9之和等於0，且a1＞a9，請問下列敘述何者錯誤？(A) a1＋a9＝0(B) a2＋a8＝0 (C) a5＝0(D) a3＜a7
- 若一等差數列的公差為4，且第2項和第10項互為相反數，則此等差數列的首項是多少？(A) -10(B) -20(C) 10(D) 20
- 【題組】4公分(A)O(B)X
- 【題組】6公分(A)O(B)X
- 【題組】260(A)ㄅ.二百六十(B)ㄆ.二百零三(C)ㄇ.二百九十九(D)ㄈ.三百(E)ㄉ.二百五十
- 【題組】251(A)ㄅ.二百六十(B)ㄆ.二百零三(C)ㄇ.二百九十九(D)ㄈ.三百(E)ㄉ.二百五十一
- 【題組】300(A)ㄅ.二百六十(B)ㄆ.二百零三(C)ㄇ.二百九十九(D)ㄈ.三百(E)ㄉ.二百五十一
- 【題組】203(A)ㄅ.二百六十(B)ㄆ.二百零三(C)ㄇ.二百九十九(D)ㄈ.三百(E)ㄉ.二百五十一
內容推薦
- 用10公分、12公分的木條各兩根，可以拼出下列哪些四邊形？(甲)菱形；(乙)鳶形；(丙)正方形；(丁)長方形 ；(戊)平行四邊形；(己)等腰梯形。(A) 乙己(B) 甲丙丁(C) 乙丁戊(D) 丁
- 已知△ABC，∠A=X°，∠B=3X+10°，∠C=2X-40°，則△ABC為何種三角形？(A)銳角三角形(B)鈍角三角形(C)直角三角形(D)等腰三角形
- Look at the picture. What does George’s grandpa do every Monday morning?(A) He plays tennis. (B)
- Amy: I have two ___ for a tennis game, Emma. Let’s go on Sunday.Emma: OK. ___________ does it st
- Jason: Do you have English class today? Jim and his classmates: __.(A) Yes, I do (B) Yes, we do
- Tom can’t speak Chinese, and Lisa ________,__________.(A) can’t; either (B) can ; too (C) aren’t
- Teddy ____ hard for three hours every night and _____ good grades . His parents are ____ of him.
- Ian: Does William take a shower every morning? Jenny: Yes, ________(A) he goes to bed at 8:00 a.
- The students _____ not very happy because they ______ the basketball game.(A) are ; lose (B) do ;
- George _______ baseball at 5:30 a.m. He _________ his school life.(A) practicing; enjoying (B) p
- A: What time does your school ________ every morning? B: _______ eight thirty.(A)share; To (B) s
- A: What _______ they do _______ Thursday evenings? B: They study English.(A)does ; in (B) do; on
- Ben and George are different. Ben _______ a lot in the meeting, but George _______.(A) talks; do
- Tom: What do the students _____ in the living room? Lily: They _____ TV in the living room.(A) d
- Mia: These dogs don’t have a home. __________. John: Let’s ask Mr. Wilson for help.(A) Let’s sha
- 【題組】_____ (A) together (B) just (C) still (D) shouts
- 【題組】_____ (A) but (B) with (C) like (D) fun
- 【題組】What animals can’t we see in the reading?(A) (B) (C) (D)
- 【題組】What is the main idea of the reading?(A) The Bales don’t have sheep. (B)The Bales exercise a
- 【題組】What is “right” about the reading?(A) Albert gets up late. (B) Albert isn’t a baseball player
- 【題組】What does “ veggie” mean in the reading?(A) (B) (C) (D)
- 任何一條直線，都會有中點。(A)O(B)X
- 如下圖(四)，直線 L : y = ，而 A 為平面上非 L 上的任意一個點，若通過 A 作鉛直線與 L 交於 B ，令 A′ 為以 L 為對稱軸的對稱點，則所形成的 ∆ABA′ 都必為正三角形
- 如下圖(五)所示，因為 ∠1 ＜ ∠2 ，所以對頂角不一定會相等。 (A)O(B)X
- A = 1 + 3 + 5 + ........ + (2n − 1) ， B = 1 + 2 + 3 + ... + (n − 1) + n + (n − 1) + ... + 3 + 2 +