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O is the center of the semicircle. If and ∠BCO=30 and BC =$$6\sqrt3$$ , what is the area of triangle ABO? GRE、gre题库、gre模考、gre考满分
If the hypotenuse of an isosceles right triangle has length of 8, then the area of the triangle is


If ABCD is a rectangle, BC = x and AB = 2x, then the circumference of the circle, in terms of x, is
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If the length and width of rectangle R are each increased by 1, the area of the new rectangle will be 72. If the length and width of rectangle R are each decreased by 1, the area of the new rectangle will be 35. What is the perimeter of rectangle R?
If the ratio of the volume of cube A to the volume of cube B is 1 to 8, what is the ratio of the surface area of cube A to the surface area of cube B?
A cow is tethered to the corner of a rectangular shed. If the length of the rope is 5, and the shed has length 4 and width 3, what is the maximum area that is accessible to the cow? (The cow cannot enter the shed). GRE、gre题库、gre模考、gre考满分
x is between

Note: Figure not drawn to scale
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If the circle with center O has area 9π, what is area of equilateral triangle ABC? GRE、gre题库、gre模考、gre考满分
A is the center of the circle, and the length of AB is $$\sqrt{2}$$. The blue shaded region is a square. What is the area of the shaded region? GRE、gre题库、gre模考、gre考满分
If AC = BC and CD = DE then, in terms of x, the value of y is

Note: Figure not drawn to scale
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Two sides of a triangle have length 6 and 8. Which of the following are possible areas of the triangle?

I. 2

II. 12

III. 24


If ABCD is a square with area 625, and CEFD is a rhombus with area 500, then the area of the shaded region is

Note: Figure not drawn to scale
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Quantity A

Number of primes between 50 and 60

Quantity B

Number of primes between 80 and 90


x and y are prime numbers and x + y = 18

Quantity A

xy

Quantity B

70


x and y are prime numbers.

x + y = 18

Quantity A

y

Quantity B

14


Quantity A

Product of even integers from -12 to 6 inclusive.

Quantity B

Product of odd integers from -5 to 13 inclusive.


w , x and y are consecutive even integers.

wxy = 0

w < x < y

Quantity A

x

Quantity B

0


n is a positive integer.

n is not divisible by 4.

n is not divisible by 5.

Quantity A

The remainder when n is divided by 4

Quantity B

The remainder when n is divided by 5


Quantity A

The remainder when positive integer x is divided by 11

Quantity B

11


Quantity A

The number of distinct prime factors of $$20^{6}$$

Quantity B

The number of distinct prime factors of $$32^{10}$$


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