1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lerok [7]
3 years ago
15

Analyze the reflectional symmetry of the regular polygons. The square has -fold reflectional symmetry. The regular octagon has -

fold reflectional symmetry.

Mathematics
1 answer:
postnew [5]3 years ago
8 0

Answer:

The square has 4-fold reflectional symmetry. The regular octagon has 8-fold symmetry.

Step-by-step explanation:

For a square,

There are two lines of symmetry along two diagonals and

two lines of symmetry along midpoints of two pairs of opposite sides.

Therefore, there are 4 lines of reflectional symmetry in total.

For a regular octagon,

There are four lines of symmetry along four diagonals and

four lines of symmetry along midpoints of four pairs of opposite sides.

Therefore, there are 8 lines of reflectional symmetry in total.

You might be interested in
Estelle bought 7.2 pounds of oatmeal and gave 6.1 pounds of it to a neighbor. How much
Harman [31]

Answer:

1.1

Step-by-step explanation:

7.2-6.1

3 0
3 years ago
What is the gcf of 25 and 90
Yuliya22 [10]
25 = 5^2
90 = 2 . 3 . 3 . 5

GCF is not as greedy as LCM.
GCF is just on a diet, so it takes the same number and the smallest amount.

25 and 90 both have 5.
5^2 or 5 ?
Take the smaller one.
GCF = 5
3 0
3 years ago
The 10 participants in an experiment had the following reaction times ( in milliseconds ) : 778,783,784,786,790,804,807,810,819,
Nata [24]

Answer:

Mean. It includes all data points.

Step-by-step explanation:

-We first need to calculate the mean, median and mode then compare our values:

#Mean:

\bar x=\frac{1}{n}\sum{x_i}\\\\=\frac{1}{10}\sum{778+783+784+786+790+804+807+810+819+823}\\\\=\frac{1}{10}\times \\\\=798.40

#The median is the middlemost data point in a lsit data:

778,783,784,786,790,804,807,810,819,823

-Since our data points is an even number, the median number is calculated as:

median=\frac{1}2}\sum{5^{th}+6^{th}}\\\\=0.5[790+804]\\\\=797.00

#Mode is the data point with the highest frequency:

-Since there's no number appearing more than once, our set has no mode.

#Since our data set has no outliers and is not a skewed distribution, the mean will be the best measure as it includes all data points

8 0
3 years ago
Find the lateral surface area of the figure below. Round the the nearest tenths place.
nadya68 [22]
Answer: lateral surface area = 119.4cm^2
r = 2 cm.
h = 9.5 cm.

Steps:
Lateral surface area of a cylinder = 2πrh
r = radius h = height π = pi

2π(2)(9.5)
2π(19)
38π = 119.38052
4 0
3 years ago
Can someone solve this and explain?
Anarel [89]
Answer: (y-c)/m
Reasoning:
Subtract c from both sides [ y-c=mx+c-c ]
Divide m from both sides [ (y-c)/m=mx/m ]
7 0
3 years ago
Other questions:
  • The area of w is 289m². Find the circumference of w
    11·1 answer
  • Mary wants to fill in a cylinder vase. At the flower store they told her that the vase should be filled 3/4 for the flowers to l
    11·1 answer
  • What is 180(n-2)=s when solving for N​
    8·1 answer
  • Kat is correct not correct not you<br> the answer is 60 noble and 40 douglas
    10·1 answer
  • Can you help me with 1 and 3
    7·2 answers
  • Find the volume of the sphere. Either enter an exact answer in terms of pi or use 3.14 for pi and round your final answer to the
    12·1 answer
  • Compare the functions.
    14·1 answer
  • Find the slope for -8y=2x+5
    8·2 answers
  • Determine the slope of a line that contains the points (6,7) and (5,1)​
    5·2 answers
  • Dave has 10 poker chips, 6 of which are red and the other 4 of which are white. Dave likes to stack his chips and flip them over
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!