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數學 國中

問選擇和計算6、8

1 passed the math test. (C) that watching movies is interesting. (B) and ) 8. Many people think 三上數學 2-1(3)圓外切四邊形、弦、切線、 如圖,有AB與AC 兩線段。若一圓 O過 A、B 兩點,且與直線 AC相切,則下列哪一條直線會 通過圓心O? (A)∠CAB的角平分線 2. 如圖,四邊形 ABCD 為圓 O的外切四邊形,若 AB = 3x-2, BC =3x+2,CD =x-S,AD=2x+1,則四邊形ABCD (B) AC的中垂線 (C)過C點與AC垂直的直線 (D)過A點與AC垂直的直線 2X+ 的周長為5. AB+CDAT元 2 3X-2 7X-2-5X+3 13+15+3价 B 2X = 10 =28X2 4.如圖,圓 ○分別與AB、BC、CA 切於D、E、F三點, CADE 3X-2+4X-5=2X+1+3x+2X=558 3.如圖,等腰梯形ABCD 為圓 O的外切四邊形,若AD =8,BC=16,RAB AB: 12. 若 AD =18,則△ABC的周長為_ 18-X-X 9+3=7AB+B+CA =X=1P 號2 -姓名朋友才 = 2, CD=8,則圓的半徑為 41:20 ++(-2)=1- 16+X-42+4=X 5 6. 如圖, AB || CD,OT − AB,若CD = 6, AB = 4,OM = MT,則圓的半徑為何? 18⁰. AB+x+y+CA/ X=9 18 5. 如圖, AB是圆O的直徑,CD是圓 的弦,且 AB - CD於M點,若AM 56. BXD • (20 B D 7. 如圖,△ABC中,AB6、BC10、AC-8,若三直 線AB、AC、BC分別與圓 O切於D、E、F三點,來 D BE的長。 X-6+X-8=107 .62 BE ->X-14=10 √36+1446 =X=>4 =6,55 3.如圖,但面还有大、小兩個同心圓,其中 4B 為大圓的 一弦,且切小圓於 R點。若兩圓之間的環形區域面積 公分。 為225 » 平方公分,則B= = x 14+X-2X+1 2X=5,X=3 T-DX 2010 (-1,k) α = 0B² 兰 放 9.如圖,某商店的圓形招牌因颱風吹落而破碎。種那種一小塊產生的二 今欲重做一個與原尺寸大小相同的招牌,經測量得知AB 下 =1公尺,其中M為AB中點,MNAB、若金葉形重板的半香港 X=2+(x-1) 放學時 k={ 10. 如圖,圓的部分弧上有三點A、B、C、其證 為(-2,4)、(3,1)、(1,4),求圓心的坐標為间? 2+12/25 (-2-1)²+(14) |_|\-) (2)+kx++)/ 営 3.

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數學 國中

問錯的這幾題

1 passed the math test. (C) that watching movies is interesting. (B) and ) 8. Many people think 三上數學 2-1(3)圓外切四邊形、弦、切線、 如圖,有AB與AC 兩線段。若一圓 O過 A、B 兩點,且與直線 AC相切,則下列哪一條直線會 通過圓心O? (A)∠CAB的角平分線 2. 如圖,四邊形 ABCD 為圓 O的外切四邊形,若 AB = 3x-2, BC =3x+2,CD =x-S,AD=2x+1,則四邊形ABCD (B) AC的中垂線 (C)過C點與AC垂直的直線 (D)過A點與AC垂直的直線 2X+ 的周長為5. AB+CDAT元 2 3X-2 7X-2-5X+3 13+15+3价 B 2X = 10 =28X2 4.如圖,圓 ○分別與AB、BC、CA 切於D、E、F三點, CADE 3X-2+4X-5=2X+1+3x+2X=558 3.如圖,等腰梯形ABCD 為圓 O的外切四邊形,若AD =8,BC=16,RAB AB: 12. 若 AD =18,則△ABC的周長為_ 18-X-X 9+3=7AB+B+CA =X=1P 號2 -姓名朋友才 = 2, CD=8,則圓的半徑為 41:20 ++(-2)=1- 16+X-42+4=X 5 6. 如圖, AB || CD,OT − AB,若CD = 6, AB = 4,OM = MT,則圓的半徑為何? 18⁰. AB+x+y+CA/ X=9 18 5. 如圖, AB是圆O的直徑,CD是圓 的弦,且 AB - CD於M點,若AM 56. BXD • (20 B D 7. 如圖,△ABC中,AB6、BC10、AC-8,若三直 線AB、AC、BC分別與圓 O切於D、E、F三點,來 D BE的長。 X-6+X-8=107 .62 BE ->X-14=10 √36+1446 =X=>4 =6,55 3.如圖,但面还有大、小兩個同心圓,其中 4B 為大圓的 一弦,且切小圓於 R點。若兩圓之間的環形區域面積 公分。 為225 » 平方公分,則B= = x 14+X-2X+1 2X=5,X=3 T-DX 2010 (-1,k) α = 0B² 兰 放 9.如圖,某商店的圓形招牌因颱風吹落而破碎。種那種一小塊產生的二 今欲重做一個與原尺寸大小相同的招牌,經測量得知AB 下 =1公尺,其中M為AB中點,MNAB、若金葉形重板的半香港 X=2+(x-1) 放學時 k={ 10. 如圖,圓的部分弧上有三點A、B、C、其證 為(-2,4)、(3,1)、(1,4),求圓心的坐標為间? 2+12/25 (-2-1)²+(14) |_|\-) (2)+kx++)/ 営 3.

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英文 國中

有人會空白的題目嗎

國三上 第二課文法練習題 姓名: 依提示作答: ✓//1. Playing online games is interesting to many students. (1) Playing online game was interested to many students. 2. Vicky's sad story was surprising to us. (用過去分詞改寫句子) 3. Terry and David were excited about the basketball game. (用現在分詞改寫句子) ✓4. All the people at the theater were satisfied with the movie. (用現在分詞改寫句子) ✓5. The computer homework is boring to Jenny. (一般動詞改寫句子) 6. It is boring to Helen to spend her summer vacation staying at home all day. (請將此句以「某人對某事感到無聊的」改寫) ✓ 7. Children is excited about Halloween. They can go trick-or-treating on this holiday. (將兩句用「某事對某人是興奮的」合併成一句子) Children is exciting to go on Hall ✓ 8. Doing the same work bores Jane's father. ((a)♬ boring (b)♬ bored Jane's father. the same work (a) Donig is boving (b) Jane's farther is brored with doing to came work surprising ) 10 trick-or-treating V 9. The story surprises young people. ( oween. The story surpising to young people 10. Was everyone in the house surprised at the good news? ( Did...?7) 11. The answer to the question was satisfying to them all. (用 They 改寫句子) V Many people was inspiring 12. Many people were inspired by Nick's movie. (be inspiring to... 7) to Nick's movie 13. The class trip to Sun Moon Lake excites all of the students. (All of the students....07) 14. To eat the same food every day is boring to the boy. (用 The boy....改寫句子) The boy is boved to with eat the same 15. Every student excited about the game. same food (The game is....) food every every day. 1

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