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Taya2010 [7]
3 years ago
6

Through which angle of rotation does the image of a regular pentagon coincide with its preimage?

Mathematics
2 answers:
Grace [21]3 years ago
5 0
Since a complete turn would be of 360 and that a pentagon has 5 sides you take 360/5 =72 so each angle of 72 degrees returns the original configuration
natka813 [3]3 years ago
3 0
<h2>Answer:</h2>

The angle of rotation by which the image of a regular pentagon coincide with its pre-image is:

                                        72°

<h2>Step-by-step explanation:</h2>

Regular polygon--

A regular polygon is a polygon in which all the sides and all the interior angles are equal i.e. the polygon is equilateral and equiangular.

In general the angle of rotation of a regular n-polygon is given by:

                    \dfrac{360}{n}

where n is the number of sides in a polygon.

Here we have n=5 (pentagon)

Hence, the angle of rotation of the image is:

               \dfrac{360}{5}=72

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What is the y intercept of the line containing the points shown in the table.
klemol [59]

Answer:

Answer is B

Step-by-step explanation:

In this question, we have to find the value of the y intercept and we have a table given .

First let's see what is y intercept.

y intercept is the value of y when x=0.

And in the given table , we have to check for the y value whose x value is 0 .

And when x=0, y=-5. THerefore y intercept is -5. And the correct option is B.

8 0
3 years ago
It takes 12 men 5 days to complete a job. Work out how many days it would take 3 men to complete the same job.
frutty [35]

Answer:

20 days

Step-by-step explanation:

It takes 12 men 5 days to complete a job. Work out how many days it would take 3 men to complete the same job.

12 * 5 = 60

60/3 = 20

It will take 3 men 20 days to do the same job

3 0
3 years ago
I need help .. so can somebody help me please ? what two number and get 10 and -24 ?
Trava [24]
What 2 numbers do you multiply to get 10? In other words, what number can you multiply with another number to get 10? 

The formula to solve this would be:

X x Y = 10

There are at least two combinations of two numbers that you can multiply together to get 10.

For your convenience, we have made a list of all the combinations of two numbers multiplied by each other that will make 10:

<span>1 x 10 = 10
2 x 5 = 10
5 x 2 = 10
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</span>
6 0
3 years ago
Read 2 more answers
My teacher hasn’t been very helpful need help please
12345 [234]
Since a and b are parallel, and c and d are parallel, if you put 3 diagonal from 1 as a vertical angle, it will be true. (hope I could help)
4 0
3 years ago
Instructions:Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
brilliants [131]
The GCF of the first two is 4p³q².
The GCF of the second two is 8pq⁵.
The GCF of the third two is 4p²q⁵.
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The GCF of the fifth two is 4p²q.

To find the GCF of each pair, find the greatest number that will divide into each coefficient.  As for the variable portions, choose the variable that has the smallest exponent from each pair.
7 0
3 years ago
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