#### 题目列表

The figure above is a regular hexagon.

P

#### Quantity B

Q a

#### Quantity B

60° #### Quantity A

The perimeter of ABCD

#### Quantity B

The sum of the lengths of diagonals AC and BD a=b, FD||BC

The area of △ABC

#### Quantity B

The area of △DEF AB=8, BC=12. The perimeter of the quadrilateral ABCD is 34. If AB=AC, then what is the perimeter of △ADC? The length of the three sides of a triangle is 13, 13 and 10

#### Quantity A

The area of the triangle

#### Quantity B

65

In △ABC, AB=2, △ABD is an equilateral triangle. Which of the following side can be known?
Indicate all such sides. Two sides of an isosceles triangle have lengths 5 and 5.
Quantity A: The perimeter of the triangle
Quantity B: 15

What is the value of x? Quantity A: a
Quantity B: b In the figure above, the length of BE is 4, and the length of CF is 3, what is the perimeter of triangle ABC? The x-coordinate of A is 0.5, the x-coordinate of B is 2, while their y-coordinates are the same.

#### Quantity A

x-coordinate of C

#### Quantity B

1.75 An equilateral triangle has a side of 6
Quantity A: The area of the triangle
Quantity B: 18
Both an isosceles triangle and an equilateral triangle have a height of 20

#### Quantity A

The area of the isosceles triangle

#### Quantity B

The area of the equilateral triangle

y=$\frac{x+w}{2}$ , what is w-y in terms of x and y?
$x=\frac{a+\frac{b}{d}}{\frac{d}{c}}$

Which one of a, b, c, d doubles, so that x will also double?
k is an integer

#### Quantity A

$\frac{k^{2}+1}{k^{2}}$

#### Quantity B

$\frac{k^{3}+1}{k^{3}}$

#### Quantity A

(1-$\frac{1}{100}$)*(1+$\frac{1}{101}$)*(1-$\frac{1}{102}$)*(1+$\frac{1}{103}$) *(1-$\frac{1}{104}$)

#### Quantity B

1

$\frac{2}{23}$ < x < $\frac{2}{21}$

#### Quantity A

$\frac{2}{22}$

#### Quantity B

x

2 ≤ r < s ≤ 6

If r and s are both integers, then what`s the greatest possible value of $\frac{r+s}{rs}$?

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