#### 题目列表

In this diagram, the circle is inscribed in the square.

#### Quantity A

Length of diagonal AC

#### Quantity B

$5\frac{r}{2}$

The four small rectangles have the same dimensions

#### Quantity A

$\frac{DC}{BC}$

#### Quantity B

$\frac{4}{3}$

#### Quantity A

Perimeter of square with sides length 5

#### Quantity B

Length of one side of rectangle with perimeter 40

DC+BC

#### Quantity A

$\frac{BD}{AB}$

#### Quantity B

$\frac{BC}{DC}$

AB = 12, AC = 10, AD = 18

Note: the region above is circular

x

#### Quantity B

y

Each edge of the above cube has length 1.

#### Quantity A

Length of diagonal AB

#### Quantity B

$\sqrt{3}$

#### Quantity A

Area of a rectangle with perimeter 20

#### Quantity B

Area of a triangle with base 5 and height 10.

#### Quantity A

The perimeter of a rectangle

#### Quantity B

Twice the length of the diagonal of the same rectangle

x

y

Length of AO

Length of AB

x

y

AB

#### Quantity B

BC

AB is the diameter of the circle. If AF=BF=$3\sqrt2$and AC=5, what is the area of square BCDE?_____
If x>0, and two sides of a certain triangle have lengths 2x+1 and 3x+4 respectively, which of the following could be the length of the third side of the triangle?

Indicate all possible lengths.
If a right triangle has area 28 and hypotenuse 12, what is its perimeter?
What is the value of w in terms of x and y?

Note: Figure not drawn to scale
What is the perimeter of ABCDE?
If the area of the outer square is $4x^2$, then the area of the inner square is
If AB || CD, what is the value of x?

Note: Figure not drawn to scale
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