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問題的種類

數學 國中

求解🙏第二大題第五題 單元:畢氏定理

CONTEVE McDona MORVAN 晚回 DISITE ONOUVA DIRE NONVE TERESTEE HARUM 110m 主題 4 總計:90 √41 數學 A 一、選擇題:48分(每題8分) 20.0 B (B)1. △ABC中,若AC2-BC2=AB2,則哪一個角是直角? (A)(B)∠B (C)∠C(D) 5665 *明聯 希 無法判定。 700 4+6=2025 (A)2. 直角三角形兩股長爲2、4,則斜邊長為何? (A) 2/5 (B) 3/2(C) 5 (D) 6。 (D)3. 直角坐標平面上有一點 A(3,-4),B(-4,3),則AB = ? (A) 7 (B) 14 (C) 2/7 (0) 75E。 二、填充題:40 分(每格8分) (B 4. 圖H爲颱風過境時,有一棵垂直於地面生長的路樹受強風吹襲而折斷,樹梢正好觸 及地面,且與樹根相距4公尺,若路樹被折斷的部分長度爲/41公尺,則路樹原高 度爲多少公尺?(A) 4 + J41(B) 5 + J41 (C) 4 + 3/15 (D) 5+3/15。 (C)5.三個直角三角形排列如圖二),各邊長如圖所示,則AE = ? (A)/29 (B)/33 (C)/37 (D) 41。 TOKOP>>00001 OF = 4 畢氏定理 21 08PP. 81 (0)81-TI 存 A B(0.4) 5 () AO=BO AB 412 D B:V(41533-4²:16:4 2 C 等腰直角△ 05>>00$ (D) 1.09>> 54 08 2 B 359/P 12 B 13 asos I 圖(Ⓗ (C)6.如圖三),在梯形ABCD 中,AD // BC,∠A=90°,AD=5,BC=13,且BD (1) = BC,則CD= ? (A) 16 (B) 20 (C) 4/13 (D) 4/15 12 kz .……………-13 ← 二年級 14→ 1.若正方形的對角線長爲 12 公分,則此正方形的面積爲__平方公分。 2.在一直角三角形中,若有兩邊長分別爲3、4,則第三邊長爲 5.17 3.若一直角三角形的斜邊長為10,且一股長爲另一股長的2倍,則此直角三角形的面積爲 20 平方單位。 10 1x N 4. 如圖,三個正方形緊密連在一起,面積分別爲4平方公分、 9平方公分、16 平方公分,則 AB=_ 公分。 5.若一矩形的周長爲 42 公分,且長比寬多3公分,則此長方 形的對角線長爲 4x=36 三、計算題:12 分 公分。 (zx+3)=42 x=2>201 4X+6:42 ※如圖,一直線過A(-4,0)且與y軸交於 B 點,若 AB=4√2,則 (1) B 點坐標爲何? (2) O爲原點,則△AOB 爲何種三角形? (1) d<O<O C 81+16 97 B 87+127: 64 +144 208 : 413 · 4 A 2 去。 A 。 16 3 81+16 = 97 $d<²5x50 4 y B B 185 = (Fre) (4,0) O

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英文 高中

想請教第5題,謝謝

across Kindergarten classes always take place in a classroom, right? Well, for kids in Europe, that is not always the case. 1. 2. 3-6-year-olds have class entirely outside. These “forest kindergartens” have learning in a regular classroom, some 3. Europe over the past fifty years. The basic idea behind them is that most kids spend too much time indoors, where they play with plastic toys and stare at screens. At forest kindergartens, the kids get a chance to spend hours wobodno 4. in nature. Despite the different environment, the purpose of forest kindergartens is pretty much went the same as 5. of indoor ones: to take care of and educate young children. Studies show that 6. harunso is beneficial for kids to spend more time outside. This provides a great 7. for them to learn many things. These can include 8. skills such as finding their way in the woods and identifying plants and animals. On top of that, the kids appear 9. their time outside, as they run, play, and experience the outdoors with all of their senses. These experiences enable them to be healthier and more comfortable in a natural TWO setting. By giving kids greater access 10. nature, forest kindergartens are improving their lives. Do you think forest kindergartens would work in your country? 1.(A) live (C) living (D) to live (C) Aside from (D) Except for 2.(A) Instead of 00 (B) Due to look 3.(A) risen above (B) made waves Ctorn apart (D) ruled with an iron fist ©) back and forth (D) at a time (B) side by side 4.(A) at risk (C) one (D) what 5.(A) it ZO (C) there29 (D) it 6.(A) this maidot (B) what (B) lived 2 影不) ya (B) that

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