Violympic toán 8
Các câu hỏi tương tự
Let ABCD be a trapezoid with bases AB, CD and O be the intersection of AC and BD. If the areas of triangle OAB, triangle OCD are 16cm2, 40cm2respectively and M is the midpoint of BD, then the area of the triangle AMD is .........cm2.
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Let ABCD be a trapezoid with bases AB, CD and O be the intersection of AC and BD. If the areas of triangle OAB, triangle OCD are 16cm2, 40cm2respectively and M is the midpoint of BD, then the area of the triangle AMD is .........cm2.
Given that ABCD is a rectangle with AB = 12 cm, AD = 6 cm. M and N are respectively midpoint of segments BC and CD. Find the area of triangle AMN in square centimeters.
Given the isosceles triangle ABC (AB=AC) with . Draw the bisector AD and BE of angles A and B respectively. Given BE = 10cm. Evaluate AD.
Let ABCD be the square with the side length 56cm. If E and F lie on CD, C respectively such that CF = 14cm and EAF = 45o then CE = ........cm.
Given the quadrilateral ABCD with two diagonals perpendicular and AB = 8cm, BC = 7cm, AD = 4cm. Evaluate CD.
Answer: CD = cm.
Bài thi số 1
19:43
Câu 1:
Given a rectangle ABCD with AB 4cm. What is the length of the segment CD?
Answer: CD cm
Câu 2:
Evaluate expression at .
Answer:
Câu 3:
Find , given that .
Answer:
Câu 4:
How many axes of symmetry does a rectangle have?
Answer:
Câu 5:
Find the negative value of given that .
Answer:
Câu 6:
Given a right triangle with and the altitude . Let be respectively the midpoints of segments AB, AC. Evaluate .
Answer:
Câu...
Đọc tiếp
Bài thi số 1
Given a rectangle ABCD with AB = 4cm. What is the length of the segment CD?
Answer: CD = cm Câu 2:
Evaluate expression$)
at 
.
Answer: Câu 3:
Find
, given that 
.
Answer:
Câu 4:
How many axes of symmetry does a rectangle have?
Answer: Câu 5:
Find the negative value of given that 
.
Answer: Câu 6:
Given a right triangle
with 
and the altitude 
. Let 
be respectively the midpoints of segments AB, AC. Evaluate 
.
Answer:
Câu 7:
Find the remainder in the division of$)
by 
.
Answer: The remainder is Câu 8:
Find
such that $)
is divisible by $)
.
Answer:
(Input the result in ascending order separated by ";") Câu 9:
Fill in the blank with >; < or =.
0
Câu 10:
Fill in the blank with >; < or =.
0
19:43 Câu 1:
Given a rectangle ABCD with AB = 4cm. What is the length of the segment CD?
Answer: CD = cm Câu 2:
Evaluate expression
Answer: Câu 3:
Find
Answer:
How many axes of symmetry does a rectangle have?
Answer: Câu 5:
Find the negative value of
Answer: Câu 6:
Given a right triangle
Answer:
Câu 7:
Find the remainder in the division of
Answer: The remainder is Câu 8:
Find
Answer:
(Input the result in ascending order separated by ";") Câu 9:
Fill in the blank with >; < or =.
Fill in the blank with >; < or =.
ABCD is a square,AB=a,AC intersects BC at O. M and N are points on the line segments BC anh DC respectively satisfying that MON=45.Then BMxDN=....a^2
A box contains 50 blue square cards whose the side length are 2 cm, 4 cm, 6 cm, ..., 100 cm, respectively and 50 red square cards with side lengths are 1 cm, 3 cm, 5 cm, ..., 99 cm, respectively. The total area of the blue cards is greater than the total area of the red care is .... cm2