math

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

1. 👍 0
2. 👎 0
3. 👁 2,044
1. #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)&rightarrow;(-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.

1. 👍 0
2. 👎 1
2. so what are the answers

1. 👍 0
2. 👎 0
posted by Jack

1. 👍 0
2. 👎 0
posted by F0x
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

1. 👍 34
2. 👎 2
5. Mr.pickles is correct!

1. 👍 2
2. 👎 0
6. mr.pickles is correct 5/5

1. 👍 1
2. 👎 0
7. 5. would be a pentagon

1. 👍 0
2. 👎 0
8. 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)

1. 👍 12
2. 👎 0
9. I got 100%. Mr Pickles is correct. But on question #6, put it into your own words.

1. 👍 1
2. 👎 0
posted by Me
10. Mr. Pickles [ amazing name ] is correct,

I got 100% for 2019

1. 👍 1
2. 👎 0
11. tysm mr pickles! I agree with anon mouse awesome name XP

1. 👍 1
2. 👎 0
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.

1. 👍 2
2. 👎 1
posted by Wrong
13. Thank you Mr Pickles!

1. 👍 0
2. 👎 0
posted by Hello
14. I believe wrong is right

1. 👍 1
2. 👎 0
15. Go Mr.Pickles!

1. 👍 0
2. 👎 0
posted by emma
16. For the Connections Academy Mathematics Topic:
"Lesson 10: Rotational Symmetry and Rotations
Essential Math 7 B Unit 4: Graph in the Coordinate Plane"

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

1. 👍 0
2. 👎 0
posted by Lou
17. Mr. Pickles is 100% correct! Thank you!

1. 👍 0
2. 👎 0
posted by .

Similar Questions

1. PLZ HELP Math!

1. Estimate the measure of the angle. Graphic 90° 85° 102° 78° 2. Which figure is NOT a polygon? Graphic Graphic Graphic Graphic 3. Which pair of angles are vertical? Graphic ∠b and ∠c ∠b and ∠e ∠b and ∠d ∠b and

asked by name:unknown on February 14, 2019
2. Identifying patterns

If the pattern of polygons continues, how many sides will polygon 98 have? and there is a picture of polygon 1 which is a 3-sided triangle polygon 2- which is is a sqaure polygon 3- which is a 5 sided pentagon. polygon 4- which is

asked by Chelsea on May 11, 2011
3. geometry

If a polygon is a kite, which statement is not true? a. The polygon is a quadrilateral. b. The polygon has exactly two distinct pairs of adjacent congruent sides. c. The diagonals of the polygon are congruent. d. The diagonals of

asked by roddy on January 3, 2011
4. Math

Tell whether the pair of polygons is similar. Explain why or why not. The polygon A is bigger. The side of the polygon is 10ft and the top sides of the polygon is 11ft. The polygon B is smaller. The side of the polygon is 8.4ft

asked by Enna on November 9, 2018
5. math

A regular polygon is inscribed in a circle of radius 9 cm. Calculate the perimeter of the polygon to the nearest tenth if the polygon has 6 sides.

asked by Anonymous on November 6, 2016
6. math

A regular polygon is inscribed in a circle of radius 11 cm. Calculate the perimeter of the polygon to the nearest tenth if the polygon has 8 sides.

asked by Anonymous on November 6, 2016
7. Geometry

The sum of the interior angles of polygon is 1800. Find the number of sides in the polygon and, what do you call that polygon?

asked by Anal-G on January 20, 2011
8. Math

how do I find the number of degrees in the point angle of a {5/2} star polygon? Since it is a polygon and a polygon has to equal 360 degrees...would I divide 360 by 5? Please help

asked by Punkie on December 9, 2009
9. Math

how do I find the number of degrees in the point angle of a {5/2} star polygon? Since it is a polygon and a polygon has to equal 360 degrees...would I divide 360 by 5? Please help

asked by Punkie on December 10, 2009
10. math

A side of regular polygon is 3.5 cm in length.the perimeter of the polygon is 17.5 cm. How many sides does the polygon have?

asked by nimshi on September 30, 2012

More Similar Questions