展开全部

题目列表

题目内容
In a pentagon, the measure of one interior angle is 84°, while the measure of the rest four interior angles are the same. What is the measure of each of the rest four interior angles?

In the pentagon above,what is the value of x?
In the figure shown above, a regular octagon is inscribed in a square.

Quantity A

The ratio of AE to AF

Quantity B

The ratio of AB to AD


A regular hexagon is inscribed in a circle. If the diameter of the circle is d, what will the perimeter of the hexagon be?
Pentagon A and B are similar pentagons. Each side of pentagon B is half of the corresponding side of pentagon A

Quantity A

$$\frac{1}{3}$$ times the area of pentagon A

Quantity B

Area of pentagon B



Quantity A

r

Quantity B

200



Quantity A

y

Quantity B

z


In a triangle Δ ABC,D is a point on AC,if BD is the height of Δ ABC,then which angle could be greater than 90°?

According to the figure above,which of the following must be true? Indicate all such items.
In pentagon ABCDE, points M, N, P ,Q, and R are the midpoints of sides AB, BC, CD, DE, and EA, respectively.

Quantity A

The perimeter of pentagon ABCDE

Quantity B

The perimeter of pentagon MNPOR



What is the range of x in the figure?
u,v,x,y are 4 consecutive odd integers,and 3 < u < v < x < y

Quantity A

The average of u, v, x, y

Quantity B

y-u


6 people rent a van and share the rent together. Later, there were two more people, and then each person spent $ 5 less.

Quantity A

The rent of the van each day

Quantity B

96


There are n positive integers. The sum of the integers is greater than 48. If the arithmetic average of the integers is 1.2,what is the least possible value of n?
The average of 11 different positive integers is 30. If each of the 11 integers is multiplied by 2 and get a new set with the 11 integers,what is the average of all the 22 integers?
There are three numbers: k, i and t. Among them, k is two thirds of i, and twice of t. What is the mean of three numbers?
There are two number lists with the same average: 5, 7, 9, 6, x and 4, 8, 10, 11, y.

Quantity A

x

Quantity B

y


The average of three largest number among five integers is 7 more than the average of the three least number among the five integers. How much greater is the average of the two largest number than the average of the two least number among the five integers?
The average age of male and female employees in a company is 35 and 32 years old. If the average age of all the employees is 33 years old, what is the ratio of male and female employees in the company?

Give your answer as a fraction.
A bookstore sells both new and old books. The unit price of new book is $90, the average price all the old and new books is $60, and the total price of all the old books and all the new books are the same. What is the unit price of old book?
_____dollars

共收录:

25000 +道题目

196本备考书籍

最新提问