國中 解答

如右圖,將一長方形紙片沿著虛線剪成兩個全等的梯形紙片。根據圖中 B C 標示的長度與角度,求梯形紙片中較短的底邊長度為何? 9 45

如右圖,在四邊形 ABCD 中, AC ⊥ BD ,且 AC =8, BD =10,則此四邊形 ABCD 的面積 為何?

如右圖, AB 與 CD 相交於 O 點。若∠AOC= (2 x  5) ,∠BOD= ( 4 x  45) ,則∠AOD O 的度數為多少?

如右圖, AD 與 BC 交於 O 點,∠A=40°,∠B=50°,∠C=20°,∠D=40°,則∠1 的 O 度數為多少?

若想在等差數列 1,2,3,4 中插入一些數,使得新數列也是等差數列,且新數列的 C 2 3 首項仍是 1,末項仍是 4,則新數列的項數可能為下列何者? 1 20° D 40°

已知 a1,a2,......,a99 為一等差數列,其中 a1 為正數,且 a49+a51=0。判別下列敘述何者正確?

將等差數列 a1,a2,a3,......,a50 的每一項都減去 10,形成一個新的數列,則下列敘 B 述何者正確?

如右圖,菱形 ABCD 中,若 AC =20, BD =10,則此菱形的周長為何? A O

如右圖,若琳琳欲在∠ABC 內找一點 P,使得 PB = PC ,且 P 點到 BC 、 AB 的距離 相等,則琳琳應採用下列哪一個交點?

已知△ABC、△DEF 中,若∠A=∠D,∠B=∠E,∠C=∠F,則再加上下列哪一個條件可得知 ~ △DEF?

已知等腰三角形的頂角和一腰長,利用哪一個全等作圖,可畫出一個全等的三角形?

This restaurant sells the best steak in Taipei; you can’t find _________ steak in the city.

Alice: Is Mia _________ than the other singer on the stage tonight? Claire: Yes, I think she is also _________ of the two.

Wilbur: Did you drink as _________ milk as Dexter this morning? Memphis: Yes. We each drank three cups.

Every morning, the sky in Cappadocia fills ________ balloons _________ different colors. People from around the world come to enjoy the view.

It was less _________ yesterday than today, so I will not wear a heavy coat tonight.

Joe: _________ does the fried chicken at McDonald’s _________? Kevin: It smells great, but my mom doesn’t let me eat it very often.

Tokyo is bigger than _________ in Taiwan and it has many tall buildings and busy streets.

When will you start to _________? We will leave very early tomorrow morning.

Fifi: The party starts at 7 p.m. Why do we need to dress up so early? Miffy: Because the _________ in Yonghe is always busy in the evening. There will be many cars.

Have fun your first mobile game!

If you need the desire to succeed. Sometimes, you can have a to give you a hand.

When the merchant (商人) was ready to leave, a hotel worker brought him his horse and said, "Sir, one shoe a nail." He answered, "It is fine. The shoe will stay on for a few more miles.

When you have a problem, you should ______ it bravely and find a way out as soon as possible.