1. Which figure has rotational symmetry? (1 point)
diamond
sideways t
polygon...
polygon
2. Indicate whether the following statement is true or false. If a figure can be translated, then it will tessellate. (1 point)
True, all translations are tessellations.
False, not all translations are tessellations...
4. Find the coordinates of the image of point R(3, –5) rotated 180° about the origin. (1 point)
(–3, 5)
(–5, –3)...
(5, 3)
(3, –5)
5. Which figure can be used to create a tessellation? (1 point)
petagram
polygo...
circle
arrow
Answers
1.A
2.C
3.D
4.A
5.B
6.Yes but you have to explain why
These are for CCA Math lesson 10 Rotational Symmetry and rotations Quiz
6. Yes, it does. As a Ferris wheel has a circular shape, it will have the same position every 45 degrees, because it has 8 cars. (1/8 of 360 = 45)
Correct answers are:
1. A
2. False
3. D
4. A
5. B
6. A. When you rotate it 60 degrees (360/3), they look exactly like it did before because every corner is at 60 degrees.
B. Yes, because it doesn't overlap nor doea it have gaps, so there for they can be used on a flat roof and not leak.
Mr.pickles is correct!
I got 100%. Mr Pickles is correct. But on question #6, put it into your own words.
Mr. Pickles [ amazing name ] is correct,
I got 100% for 2019
For the Connections Academy Mathematics Topic:
"Lesson 10: Rotational Symmetry and Rotations
Essential Math 7 B Unit 4: Graph in the Coordinate Plane"
Here is the answer key:
Rotation Symmetry and Rotations
Responses saved. The current score is 5/5. There is still 1 ungraded question worth 2 possible points.
1. A
2. False
3. D
4. A
5. B
6.
(P.S. You will have to write this out in your own words, but you should get a good grade on it.)
(P.P.S. Just Read The User "Wrong"s Essay Answer for Number 6 Then Write It in Your Own Words.
Have A Nice Day!
- Lou
answer?
so what are the answers
mr.pickles is correct 5/5
5. would be a pentagon
These are the real answers 2022!
1. A
2. C
3. D
4. A
5. B
6. The answer is yes, but do NOT copy me for the writing answer. This is what I put:
Yes, it does have a rotational symmetry because it has 8 equal lengths of sides, so when it rotates it stays the same length as before over and over again, forever and ever.
I believe wrong is right
thx everyone i got 100%
1. The diamond or A
2. yes; 72°
3. Q
F O
F R
O O R
4. (–3, 5)
5. The one that looks like a rectangle
6. yes, because it has 8 even sides so it could spin over and over again and still be the same.
Have an amazing day!
tysm mr pickles! I agree with anon mouse awesome name XP
Mr. Pickles is 100% correct! Thank you!
Mr.Pickles thank you I got 100%
Thank you Mr Pickles
I think for the last question they give everyone different shapes, as mine is not what everyone said theirs was but I had the same questions, and some said theirs was a circle, others said theirs had how many different points and stuff, so I believe they gave everyone different shapes on the last question.
for number three Grammarly corrected the letters
Just choose D
The Q is at the top of the grid to help you more
Thank you Mr Pickles!
Go Mr.Pickles!
OMG THANK YOU SO MUCH MS PICKLES I GO A 100%
@Mrpickles i'm confused on question 6. can you explain PLEASE!!!!
Sorry forgot to change my username I was the Angel of God kid
THX SOOOOO MUCH Mr Pickles and Tessa Quinn
@Mr Pickles
Is right!
5/5 thanks!
Here is what I put for answer 6 (Yes the Ferris wheel does have rotational symmetry because it`s center of rotation is exactly 90 degrees a regular octagon is closed figure with completely even sides) this answer will give you 100 percent on your quiz just in case though put some of it in your own words because other kids might just use the whole answer without changing it if you do the same they might think you cheated
MR pickles is still right 5/5 thanks so much!!
Thanks Mr.Pickles
still correct
Um so on question six your saying that everywhere it turns it is 45 degrees yes also look at my name →
#1
Question looks incomplete, not sure what "polygon..." stands for what. Please complete question.
However, all regular polygons have rotational symmetry.
#2
Translation is just one way to tessellate. There are three other ways, reflection, rotation, and glide reflection (i.e. reflection followed by a translation, or vice versa).
You only have to find one shape that that tessellates, but not with translation alone to declare the statement false. (e.g. try a triangle).
#3 is not posted.
#4
a 180° rotation is obtained by the following operation:
R_180: (x,y)→(-x,-y).
For example, point (5,-2) rotated about the origin is (-5,2), and so on.
#5
Pentagram is a 5-sided star. Try to see if you can tessellate it.
There are many kinds of regular polygons, some can tessellate, and some cannot.
(To find out what is a regular polygon, see:
https://www.mathsisfun.com/geometry/regular-polygons.html
)
Regular polygons have internal angles equal to A=180(n-2)/n, where n is the number of sides.
The polygon can tessellate if A divides 360, i.e. fits around a point.
This means that 360/A must be a whole number to tessellate, or
360/(180(n-2)/n)
=2n/(n-2) must be a whole number.
This way, you can find all the regular polygons that can tesselate.
For example, for a triangle, n=3,
and 2*3/(3-2)=6 is a whole number, so a "regular triangle", or equiangular triangle can tesselate.
For an arrow, try to see if you can tessellate. I did not find a way to do that.