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题目内容
y=2x-$$x^{2}$$

Quantity A

The maximum value of y

Quantity B

0


If a circle centered with the origin O passes through point A(-9,12),then what is the area of the square inscribed in the circle?
In x-y plane, a circle is centered at the origin and its radius is 5. A line whose slope is 2 passes through the origin and intersects with the circle at point P. What is the coordinate of point P?

The figure above is a circle centered point A and ∠BAC=58°

Quantity A

The length of chord BC

Quantity B

The radius of circle A



A is the center of the circle and ∠CAB=50°

Quantity A

AB

Quantity B

BC


The leg of isosceles triangle A is 8, while the leg of isosceles triangle B is 10.

Quantity A

The area of isosceles triangle A

Quantity B

The area of isosceles triangle B


In an equilateral triangle ABC,three points P,Q and R are on the side AB,AC and BC, respectively.

Quantity A

The sum of any two interior angles in Δ ABC

Quantity B

The sum of any two interior angles in Δ PQR



In a right isosceles triangle, the area of the shaded region is 44,BD=CE=4,and AC=AB,what is the length of AC?

If ∠ABC=∠ADB=∠DEB=∠ECB=90°,what is the total value of x+y+z?

Quantity A: The perimeter of the quadrilateral ABCD
Quantity B: 20

Quantity A

The length of the third side where the length of the remaining two sides of a right triangle is 2 and $$\sqrt{3}$$, respectively.

Quantity B

$$\frac{3}{2}$$


The length of two sides of a right triangle is 5 and 10, respectively.

Quantity A

The length of the third side

Quantity B

11


In a right triangle, two of its legs are x and y.
Quantity A: x+y
Quantity B: :√(x^2+y^2)
The length of the hypotenuse of a right triangle is 4.
Quantity A: The perimeter of the triangle
Quantity B: 12

Quantity A

x

Quantity B

y+z



What is the (straight-line) distance between point A and point D?

In the △ABC, AE= $$\frac{1}{3}$$AC, AD=$$\frac{1}{3}$$ AB, BF=$$\frac{1}{3}$$ BC, what is the ratio of the area of the shaded region to the area of △ABC?
Give your answer in fraction.

AB=AC=4, DE∥BC, ∠A=90 and the area of quadrilateral DECB is 4.

Quantity A

AE

Quantity B

EC



The figure above is a parallelogram, AB=BC=CD=DA, and ∠A=60°

Quantity A

The ratio of AC to BD

Quantity B

$$\sqrt{3}$$



The quadrilateral ABCD shown above is a parallelogram. BD=8,AC=10

Quantity A

AB

Quantity B

BC


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