All categories

3 years ago

Simetricul unui punct fata de o dreapta

1 answer:

7 0

Answer: Un set de puncte are simetrie de linie dacă și numai dacă există o linie, l, astfel încât reflectarea prin l a fiecărui punct din mulțime să fie și un punct din mulțime.

Step-by-step explanation:

You might be interested in

A cylinder has a 12-inch diameter and is 15 inches tall. It is filled to the top with water. A 6-inch-diameter ball is placed wi

Tems11 [23]

The volume of the cylinder is the space occupied by the cylinder. The volume of the water in the cylinder is 1583.36266 in³.

<h3>What is the volume of a cylinder?</h3>

The volume of the cylinder is the space occupied by the cylinder. It is calculated with the help of the formula,

$\text{Volume of the cyllinder}= \pi r^2h$

As it is given that the diameter of the cylinder is 12 inches while the height of the cylinder is 15 inches, also, it has a ball of the diameter of 6 inches placed inside the cylinder, therefore, the volume of the water that is inside the cylinder is the difference in the volume of the cylinder and the volume of the spherical ball.

$\text{Volume of the cyllinder}= \pi r^2h = \dfrac{\pi}{4}d^2 h$

Substitute the values,

$\begin{aligned}\text{Volume of the cyllinder}&= \dfrac{\pi}{4}d^2 h\\& = \dfrac{\pi}{4} \times (12^2) \times 15\\ &=1696.46\rm\ in^3\end{aligned}$

Now, the volume of the ball is equal to the volume of the sphere therefore, the volume of the ball can be written as,

$\text{Volume of the sphere} = \dfrac{4}{3}\pi r^3$

$= \dfrac{4}{3}\pi r^3\\\\= \dfrac{4}{3}\times \pi \times (3^3)\\\\= 113.097\rm\ in^3$

Further, the volume of the water that is inside the cylinder can be written as,

The volume of water = Volume of the cylinder - Volume of the sphere

= 1696.46 - 113.097

= 1583.36266 in³

Hence, the volume of the water in the cylinder is 1583.36266 in³.

Learn more about Volume of the Cylinder:

brainly.com/question/1780981

5 0

2 years ago

You guyss know it's math

a_sh-v [17]

The coefficient of X is -2

3 0

3 years ago

Mia plans to build a fence to divide her rectangular garden into two triangular areas. use the diagram to find the length of fen

Rasek [7]

Answer:

Mia will need a fence that is 9.22 meters long.

Step-by-step explanation:

5 0

1 year ago

Read 2 more answers

An artist is arranging tiles in rows to decorate a wall. Each new row has 2 fewer tiles than the row below it. If the first row

miss Akunina [59]

Okay, after I explain the process of finding the answer to this, it will be easier for you! First, you shold understand the key words to math. In this question, fewer is the key word. And fewer means less, so subtraction. Every new row has 2 FEWER tiles than the row below it. So we now to to subtract 2 from EVERY NEW row. So, if the first row has 23 tiles how many tiles will be in the next row. Well, all we have to do is 23 - 2 = 21! There is your answer, I hope I am correct!

(It is your choice to go with my answer being correct or not. I absolutely WILL NOT, and CAN NOT take responsibility for your question being incorrect. Again, it is YOUR choice to choose whether or not you go with my answer. Thank you!) :)

6 0

2 years ago

Find the measure of one exterior angle of the following polygon:<br> Nonagon

marusya05 [52]

Answer:

40°

Step-by-step explanation:

1. Shape of a nonagon: <em>9</em> (root non-)

2. Total exterior angle: <em>360°</em> (constant for all polygons)

3. Given that this polygon is regular, the one exterior angle of an nonagon is <em>360°/9</em> = 40°.

3 0

3 years ago

Read 2 more answers