
初二(數學二次根式及勾股定理)
Quiz
•
Others
•
8th Grade
•
Hard
塏俊 陳
FREE Resource
17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什麼是二次根式?
二次根式是一種幾何圖形
二次根式是一種代數方程式
二次根式是一種數學運算符號,表示一個數字的平方根。
二次根式是一種三角函數
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如何將二次根式化簡?
將根號下的數字分解成最大平方數的乘積,然後提取出來。
將根號下的數字相加再開根號
將根號下的數字相減再開根號
直接將根號下的數字提取出來
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什麼是勾股定理?
直角三角形中,a² + b² = c²,其中a和b是直角边,c是直角边。
在圓周上,一個角的角度是其對應的弧度的一半。
平行四邊形的對角線相等。
直角三角形中,a² + b² = c²,其中a和b是直角边,c是斜边。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在直角三角形中,勾股定理的公式是什麼?
a^2 * b^2 = c^2
a^2 - b^2 = c^2
a + b = c
a^2 + b^2 = c^2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如果一直角三角形的兩直角邊長分別為3和4,則斜邊長為多少?
6
7
5
8
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在一個直角三角形中,如果兩直角邊的長度分別為a和b,則斜邊的長度為多少?
a + b
a * b
a^2 + b^2
sqrt(a^2 + b^2)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如何證明兩個三角形為相似三角形?
兩個三角形為相似三角形的條件是它們的對應角度相等且對應邊長成比例。
兩個三角形的內角和相等
兩個三角形的面積相等
兩個三角形的周長相等
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