Nguyễn Cao Cường đã làm đúng nhưng cách giả đâu
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Given 20 points. Draw the lines through the 2 points of these 20 points. How many lines are there if only 3 of 20 points are aligned?
Answer: There are ... lines.
Dịch: Cho 20 điểm. Vẽ đường đi qua 2 điểm trong số 20 điểm này. Có bao nhiêu đường nếu chỉ có 3 trong số 20 điểm đó thẳng hàng?
Trả lời: Có ... đường thẳng
Given 100 points with any 3 points non-aligned. Draw all the line passing through any 2 of these points. How many lines are there?
given 5 points in which not any three points are collinear. Draw lines passing through the pair of points . How many lines are there?
Give 5 points which not any three points are collinear. Draw lines passing through the pair of points. How many lines are there?
Given two parallel lines xy & zt. Three points A,B & C are on line xy, two points D & E are on line zt. Draw lines passing through the pairs of points. How many lines are there? (including xy & zt)
LÀM VẬY ĐÚNG KO???Bài thi số 1Điền kết quả thích hợp vào chỗ (...): 12:09Fill in the blank with the suitable number (Note: write decimal number with the dot between number part and fraction part. Example: 0.5)Câu 1:The succeeding number of -7 is 7Câu 2:Given that M is the midpoint of the segment AB. Calculate the length of the segment MB if AB 10cm.Answer: MB5cmCâu 3:What is the absolute value of -4?Answer: Th...
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LÀM VẬY ĐÚNG KO???
Bài thi số 1
Điền kết quả thích hợp vào chỗ (...):
12:09
Fill in the blank with the suitable number (Note: write decimal number with "the dot" between number part and fraction part. Example: 0.5)
Câu 1:
The succeeding number of -7 is 7
Câu 2:
Given that M is the midpoint of the segment AB. Calculate the length of the segment MB if AB = 10cm.
Answer: MB=5cm
Câu 3:
What is the absolute value of -4?
Answer: The absolute of -4 is4
Câu 4:
Find the value of
Answer: A=5
Câu 5:
Given that the distance from point a to point -1 on the number line is 7. Find a if a > 0.
Answer: a=6
Câu 6:
Find the opposite number of .
Answer: It is -28
Câu 7:
Find the greatest negative integer.
Answer: It is -1
Câu 8:
Given a segment AB = 4cm. Let C be a point such that A is midpoint of segment CB. Find the length of segment CA.
Answer: CA=4cm
Câu 9:
Given 20 points. Draw the lines through the 2 points of these 20 points. How many lines are there if only 3 of 20 points are aligned?
Answer: There are 188 lines.
Câu 10:
Find the smallest natural number which has exactly nine divisors.
Answer: 36
given 2 parrel lines xy and zt.Three point ABC are on line xy,two point DE are on line zt.Draw lines pasing throught the pair of points
Given that 4 points A, B, C, D are on the same line. How many segments are there?
Given that 4 points A, B, C, D are on the same line. How many segments are there?