4-2平行四邊形的特性&判斷方法 正式挑戰!!!
Quiz
•
Mathematics
•
8th Grade
•
Medium
Howard Wu
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20 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
請問我們可以依哪個平行四邊形的判斷方法來知道這個圖形為...?
因為對角相加都超過90°所以他會是一個梯形
因為有兩組對角相同,所以可以知道此為一個平行四邊形
因為鄰角相加等於180 °所以是一個平行四邊形
(小聲問有判斷法這個嗎?)
因為一組是鈍角、一組是銳角,所以是平行四邊形
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
已知ABCD為一個平行四邊形,你很厲害的在直角三角形AED中用畢氏定理發現線段AD=5,那請問線段BC=?
你看看線段AE,所以線段BC=3啊
欸線段AE太短,線段ED又太長,所以線段BC=3.5
因為線段ED和線段BC有交點,又是在平行四邊形內,所以線段BC=4
因為線段AD和線段BC互為平行四邊形的對邊,所以線段BC=5
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
只知道ABCD為一個四邊形,今天給了一堆線索有: = 4、 = 4、 =2 、 =2、 =3、 =3。請問我們可以用這些線索如何來說明ABCD為平行四邊形?
因為 和 都等於4,所以他會是一個平行四邊形。理由:鄰邊相等。
因為 和 為對邊, 和 為對邊,所以他會是一個平行四邊形。理由:兩組對邊相同。
因為可以發現兩條對角線 和 會互相平分,所以他會是一個平行四邊形。理由:兩條對角線互相平分。
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
試問下列四個四邊形中,哪一個是平行四邊形?
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
下列四邊形中哪一個不是平行四邊形呢?
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
由題目所給的條件判斷,為甚麼可以很確定這個四邊形不是平行四邊形呢?
因為對邊不同
因為鄰角不同
因為兩組的對角都不同
因為對角線沒有互相平分
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
已知ABCD為一個平行四邊形,已知線段DB和線段AC為其對角線,已知 、 ,請問
、 ,所以
、 ,所以
、 ,所以
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