All categories

3 years ago

What is the smallest degree of rotation that will map a regular 18-gon onto itself?

2 answers:

6 0

Because the 18-gon is symmetrical, you can rotate it by 360/18 or 20 degrees. This is because when you rotate it by 20 degrees(to the left for explanation matters), any angle will now be in the position of its angle to its left.

neonofarm [45]3 years ago

3 0

Answer:

The answer is 20

Step-by-step explanation:

360 will be divided by 18 which will give you 20. For those of you who had the same question but instead of "18-gon" you had "20-gon" if you divide 360 by 20 your answer will be 18.

You might be interested in

there is an unknown number in the sequence counting backward. The number is after 48. The number is before 46. What is the unkno

Ghella [55]

The unknown number is 47.

5 0

2 years ago

The perimeter of a triangle is 104 units. The combined length of two of the sides of the triangle is 64 units.

valkas [14]

Answer:

Step-by-step explanation:

168

7 0

1 year ago

30-60-90 Triangle Practice

ella [17]

Answer:

When there are numbers like that next to the radical it means multiply. like this: 2√9. You would first figure out the square root. Square root of 9 is 3. 2 times 3 is 6.

After you figure out those problems, you just need to put the number, x, and y in an equation with 2 unknowns.

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Brenda had bowling scores of 92, 110, 85, 78, and 96. She completed the steps below to determine the score she needs in her next

Yakvenalex [24]

Answer:

Hence final answer is B: Step 2.

Step-by-step explanation:

Step 1: Find the total points needed to score in six games: 96x6=576

Justification:

Product of 96 and 6 is 576 which is same number found by Brenda. So step 1 is correct.

Step 2: Find the total points scored: 92+110+85+78=365

Justification:

Sum of total points scored by Brenda is 92+110+85+78= 461.

But she got different value 365.

Hence step 2 is wrong.

Hence final answer is B: Step 2.

3 0

3 years ago

Read 2 more answers

Which expression is represented by the diagram? ( Marked 1-4, I can't paste the question.)

wel

Answer:

-6-(-1)

Step-by-step explanation:

Since all the boxes are negative, and there are 6 boxes, the first part of the equation is -6. Then since the last box is being taken away, we are subtracting it. The last box is still negative though so the last part is -1. Since -6 subtracted by -1 is -6-(-1), the answer is:

-6-(-1)

8 0

3 years ago