#### 题目列表

If AD = 3x, AE = 5x, EB = y and DC = 5y, what is the ratio of the area of triangle DEC to the area of rectangle ABCD ?

Note: Figure not drawn to scale If the areas of the 4 squares are 50, 32, 18 and 12, what is the ratio of the small shaded portion to the area of the large shaded portion?

Note: Figure not drawn to scale In the figure below, ABC is a sector with center A. If arc BC has length 4π, what is the length of AC _____ In the quadrilateral shown here, a+b+c+d= _____ a+b+c+d

#### Quantity B

e+f+g+h x

#### Quantity B

y Circle B has diameter 2*x

#### Quantity A

The circumference to diameter ratio of circle A

#### Quantity B

The circumference to diameter ratio of circle B

#### Quantity A

Area of circle with radius (sqrt7)

#### Quantity B

Area of circle with diameter (sqrt14)

AB

#### Quantity B

8 a+b+c+d+e+f+g

#### Quantity B

1080 DC=AB=9

DB<3

#### Quantity A

Perimeter of triangle ABC

#### Quantity B

36 Area of triangle

#### Quantity B

16 Two sides of a triangle have lengths 7 and 4

#### Quantity A

Length of third side of triangle

#### Quantity B

3

Cylindrical tank A has radius x and height y.

Cylindrical tank B has radius y and height x.

x = 2*y

Volume of tank A

Volume of tank B

#### Quantity A

The circumference of a circle with diameter (sqrt50)

#### Quantity B

The perimeter of a square with side (sqrt50)

#### Quantity A

$a^{2}+b^{2}$

#### Quantity B

$c^{2}$ #### Quantity A

Area of semicircular region

#### Quantity B

Area of triangular region ABC #### Quantity A

Length of arc ABC

#### Quantity B

6 Increasing the original price of a certain item by 25 percent and then increasing the new price by 25 percent is equivalent to increasing the original price by what percent?
If $x*y \neq 0$ and 2*x + 3*y is equal to 175 percent of 8x, then $\frac{x}{y}$ =

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